... 4.width/height/thickness310/85/6(mm) 5.manufacturer highway guard rail for protection Material: Q235 ,Q345 Protective Finish: Hot dipped ... China, EU, USA, AS/NZS, etc.Certification: ISO9001:2008, CE for EUFeature: High Intensity, Durable, Great Corrosion Resistant and Exceptionally Long ... repairs in case of accidents. The specification for the guard road The drawing for the guard road If you have the ...