guardrails hot dip galvanized, 600gr/m2 w-beam highway crash barriers 30000 ... , blockout, separator, terminal ends, connector, bolt & washer etc.Surface treatment: Hot dip galvanized 600gr/m2 or as per clients' requirementsFeatures: Great ... .Certificate: ISO9000:2001 guardrails (highway guard rails,w-beam guardrails, safety barriers, crash barriers, steel barriers,road barriers for highway)