: 130mm6mm, 140mm4.5mm
Anti-collision grade: A/B/SA/SB/SS
Applied Standards for Manufacture and Quality Control:JT/T281-1995(Corrugated Sheet Steel Beams For Expressway Guardrail - China), AASHTO M-180(Corrugated Sheet Steel Beams For Highway Guardrail - USA), RAL-RG620 (German) or any other International Standards.
Hot dipped galvanized steel guardrailsare considered the effective safety barriers for highway, expressway and bridges. With thick zinc coating surface, the galvanized w beams or t