• High Performance Tri- Beam Guardrail - W beam guardrail – Huiquan

    High Performance Tri- Beam Guardrail - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • China Supplier Steel Metal Beam Guardrail - W beam guardrail – Huiquan

    China Supplier Steel Metal Beam Guardrail - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Hot Selling for Bridge Guard Rail - W beam guardrail – Huiquan

    Hot Selling for Bridge Guard Rail - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • OEM Customized Experienced Supplier Metal Beam Guardrail - Thrie beam guardrail – Huiquan

    OEM Customized Experienced Supplier Metal Beam Guardrail - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Good User Reputation for Traffic Facility - Thrie beam guardrail – Huiquan

    Good User Reputation for Traffic Facility - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Hot Sale for Road Crash Safety Barriers - W beam guardrail – Huiquan

    Hot Sale for Road Crash Safety Barriers - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • factory Outlets for W Beam Barrier - Thrie beam guardrail – Huiquan

    factory Outlets for W Beam Barrier - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • 2018 wholesale price Crash Barrier Posts - U shape post – Huiquan

    2018 wholesale price Crash Barrier Posts - U shape post – Huiquan

    The post is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 4.0mm to 7.0mm or follow the customers demand. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The post is installed into ...
  • Discount Price Popular Metal Beam Guardrail - Thrie beam guardrail – Huiquan

    Discount Price Popular Metal Beam Guardrail - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • OEM China Metal Road Safety Barrier - W beam guardrail – Huiquan

    OEM China Metal Road Safety Barrier - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Original Factory Guardrail For Driveway - Thrie beam guardrail – Huiquan

    Original Factory Guardrail For Driveway - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • 100% Original Galvanized Corrugated Guardrail - W beam guardrail – Huiquan

    100% Original Galvanized Corrugated Guardrail - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Discountable price Guard Rail Systems - W beam guardrail – Huiquan

    Discountable price Guard Rail Systems - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • OEM/ODM Factory Wire Rope Crash Barrier - W beam guardrail – Huiquan

    OEM/ODM Factory Wire Rope Crash Barrier - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • OEM/ODM China China Road Guardrail - W beam guardrail – Huiquan

    OEM/ODM China China Road Guardrail - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • China Gold Supplier for Crash Barrier In Road - Thrie beam guardrail – Huiquan

    China Gold Supplier for Crash Barrier In Road - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • 18 Years Factory Bridge Guard Rail For River - Thrie beam guardrail – Huiquan

    18 Years Factory Bridge Guard Rail For River - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Quality Inspection for Car Park Crash Barrier Systems - Thrie beam guardrail – Huiquan

    Quality Inspection for Car Park Crash Barrier Systems - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Hot sale Crash Barrier - W beam guardrail – Huiquan

    Hot sale Crash Barrier - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Competitive Price for Metal Road Safety Crowd Control Barrier - Thrie beam guardrail – Huiquan

    Competitive Price for Metal Road Safety Crowd Control Barrier - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Factory wholesale Steel Crash Barriers - Thrie beam guardrail – Huiquan

    Factory wholesale Steel Crash Barriers - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Special Design for Stainless Steel Guardrail Beam - W beam guardrail – Huiquan

    Special Design for Stainless Steel Guardrail Beam - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Online Exporter Steel Road Barrier - W beam guardrail – Huiquan

    Online Exporter Steel Road Barrier - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • High Quality for W Beam Safety Barrier - W beam guardrail – Huiquan

    High Quality for W Beam Safety Barrier - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • High reputation Vehicular Guardrail - Thrie beam guardrail – Huiquan

    High reputation Vehicular Guardrail - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • factory Outlets for W Beam Barrier - Thrie beam guardrail – Huiquan

    factory Outlets for W Beam Barrier - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Ordinary Discount Color Steel Metal Beam Guardrail - W beam guardrail – Huiquan

    Ordinary Discount Color Steel Metal Beam Guardrail - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Factory Supply Steel Posts – H shape post – Huiquan

    Factory Supply Steel Posts – H shape post – Huiquan

    The post is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 4.0mm to 7.0mm or follow the customers demand. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The post is installed int...
  • OEM manufacturer High Way Guardrail - W beam guardrail – Huiquan

    OEM manufacturer High Way Guardrail - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Factory wholesale Steel Crash Barriers - Thrie beam guardrail – Huiquan

    Factory wholesale Steel Crash Barriers - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Good quality Thrie Metal Beam Crash Barrier - W beam guardrail – Huiquan

    Good quality Thrie Metal Beam Crash Barrier - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • OEM Customized Highway Grard Rail - W beam guardrail – Huiquan

    OEM Customized Highway Grard Rail - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Low MOQ for Outdoor Guard Rail - W beam guardrail – Huiquan

    Low MOQ for Outdoor Guard Rail - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • China Gold Supplier for High Quality T-Back Guard Rail - Thrie beam guardrail – Huiquan

    China Gold Supplier for High Quality T-Back Guard Rail - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Best quality Custom Steel Guardrail Posts - U shape post – Huiquan

    Best quality Custom Steel Guardrail Posts - U shape post – Huiquan

    The post is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 4.0mm to 7.0mm or follow the customers demand. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The post is installed into ...
  • Top Suppliers Highway Guard Rail Price - W beam guardrail – Huiquan

    Top Suppliers Highway Guard Rail Price - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Big discounting Guard Rails For Roads - W beam guardrail – Huiquan

    Big discounting Guard Rails For Roads - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • factory low price Guardrail Safety - W beam guardrail – Huiquan

    factory low price Guardrail Safety - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Popular Design for Zinc Coating Guardrail - Thrie beam guardrail – Huiquan

    Popular Design for Zinc Coating Guardrail - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Factory wholesale Galvanized Steel Guardrail - Thrie beam guardrail – Huiquan

    Factory wholesale Galvanized Steel Guardrail - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Wholesale Dealers of Railing/Balustrade - W beam guardrail – Huiquan

    Wholesale Dealers of Railing/Balustrade - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Discountable price High Accurancy Metal Beam Guardrail - Thrie beam guardrail – Huiquan

    Discountable price High Accurancy Metal Beam Guardrail - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Good quality Crash Barrier Guardrail Block - Thrie beam guardrail – Huiquan

    Good quality Crash Barrier Guardrail Block - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Factory Supply Traffic Roadblocks - W beam guardrail – Huiquan

    Factory Supply Traffic Roadblocks - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Good Quality C Shape Post - C shape post – Huiquan

    Good Quality C Shape Post - C shape post – Huiquan

    The post is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 4.0mm to 7.0mm or follow the customers demand. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The post is installed into ...
  • 18 Years Factory Safety Rolling Barrier - W beam guardrail – Huiquan

    18 Years Factory Safety Rolling Barrier - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Discount Price Crash Barrier System - W beam guardrail – Huiquan

    Discount Price Crash Barrier System - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Wholesale Discount Road Safety Beam - W beam guardrail – Huiquan

    Wholesale Discount Road Safety Beam - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Factory Cheap Hot China Guardrail - W beam guardrail – Huiquan

    Factory Cheap Hot China Guardrail - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • New Arrival China China Steel Guardrail - Thrie beam guardrail – Huiquan

    New Arrival China China Steel Guardrail - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • China Cheap price China Guardrails Post - H shape post – Huiquan

    China Cheap price China Guardrails Post - H shape post – Huiquan

    The post is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 4.0mm to 7.0mm or follow the customers demand. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The post is installed int...
  • Newly Arrival Traffic Safety - W beam guardrail – Huiquan

    Newly Arrival Traffic Safety - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • PriceList for Guard Rail - Thrie beam guardrail – Huiquan

    PriceList for Guard Rail - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Newly Arrival Traffic Safety - W beam guardrail – Huiquan

    Newly Arrival Traffic Safety - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • PriceList for Guard Rail - Thrie beam guardrail – Huiquan

    PriceList for Guard Rail - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Chinese wholesale Safety Barrier Guard Rails - Thrie beam guardrail – Huiquan

    Chinese wholesale Safety Barrier Guard Rails - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Personlized Products Zinc Coated Corrugated W Beams - Thrie beam guardrail – Huiquan

    Personlized Products Zinc Coated Corrugated W Beams - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Cheap price Vehicular Impact Guardrail - W beam guardrail – Huiquan

    Cheap price Vehicular Impact Guardrail - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Manufacturing Companies for Highway Guard Rails - W beam guardrail – Huiquan

    Manufacturing Companies for Highway Guard Rails - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • New Arrival China China Steel Guardrail - Thrie beam guardrail – Huiquan

    New Arrival China China Steel Guardrail - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • China Gold Supplier for Crash Barrier In Road - W beam guardrail – Huiquan

    China Gold Supplier for Crash Barrier In Road - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Best-Selling High Quality Traffic Barrier - Thrie beam guardrail – Huiquan

    Best-Selling High Quality Traffic Barrier - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Cheap PriceList for Galvanized Steel Road Barrier - W beam guardrail – Huiquan

    Cheap PriceList for Galvanized Steel Road Barrier - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • High Quality Highway Guardrail W Beams And Accessories – Accessories – Huiquan

    High Quality Highway Guardrail W Beams And Accessories – Accessories – Huiquan

    The bolts are defined in ANSI B1.13M for Grade 6 g tolerances. Bolt material is conformed to ASTM F568M for Class 4.6. Material for corrosion resistant bolts is conformed to ASTM F 568M for Class 8.83. bolts. The surface treatment shall follow the AASHTO M232. The normal size for the washer is 76*44*4mm, and we can follow the drawings from the customer. For the reflector the color always be white, red, and yellow, you can mix them by yourself. The bolts and nuts are aimed to fasten the guardr...
  • Hot New Products Rope Guardrail - W beam guardrail – Huiquan

    Hot New Products Rope Guardrail - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • China Supplier Steel Metal Beam Guardrail - W beam guardrail – Huiquan

    China Supplier Steel Metal Beam Guardrail - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Professional China Road Traffic Barriers - W beam guardrail – Huiquan

    Professional China Road Traffic Barriers - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Cheap PriceList for W Crash Barrier - W beam guardrail – Huiquan

    Cheap PriceList for W Crash Barrier - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Super Lowest Price W Beam Guard Rail - Thrie beam guardrail – Huiquan

    Super Lowest Price W Beam Guard Rail - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Excellent quality Steel Post Supports - Round shape post – Huiquan

    Excellent quality Steel Post Supports - Round shape post – Huiquan

    The post is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 4.0mm to 7.0mm or follow the customers demand. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The post is installed int...
  • Factory Free sample Steel Road Safety Barrier - W beam guardrail – Huiquan

    Factory Free sample Steel Road Safety Barrier - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Wholesale Steel Corrugate Plate - W beam guardrail – Huiquan

    Wholesale Steel Corrugate Plate - W beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into diff...
  • Factory Free sample Hot Dipped Galvanized Highway Guardrail - Thrie beam guardrail – Huiquan

    Factory Free sample Hot Dipped Galvanized Highway Guardrail - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...
  • Professional China Guardrail Terminal End - Terminal end – Huiquan

    Professional China Guardrail Terminal End - Terminal end – Huiquan

    The terminal end is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the terminal end mainly through the 2.5mm to 4.0mm or follow the customers demand. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The terminal e...
  • Super Purchasing for W-Beam Highway Guardrail - Thrie beam guardrail – Huiquan

    Super Purchasing for W-Beam Highway Guardrail - Thrie beam guardrail – Huiquan

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard. The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa). For the thickness of the guardrail mainly through the 2.67mm to 4.0mm. The surface treatment is hot dipped galvanized, to follow the AASHTO M232 and the equal standard such as AASHTO M111, EN1461 etc. The guardrail designed for divide the road into di...