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