Name Material Specification Protective finish Standard Certificates Features Two/ three-wave highway guardrail Q235 Q345 ASTM A36 wave width: 310mm or 506mm wave height: 85mm thickness: 3mm or 4mm length: 4320mm hot dipped galvanization zinc coating weight: 880— 1220 g/ m2 China EU USA AS/ NZS etc. GB/ T19001-2000 ISO9001: 2000 European Certificate durable high intensity great corrosion resistant