guardrails hot dip galvanized, 600gr/m2 w-beam highway crash barriers 30000 tons guardrails per year ... ISO9001 cert. guardrailsSpecification(general): 4318X312X82X3 mm, available in different sizesProfile: W-beam; Thrie-beamStandard: EU, U.S., AS/NZS, etc ... check the quality.Certificate: ISO9000:2001 guardrails (highway guard rails,w-beam guardrails, safety barriers, crash barriers, steel barriers,road ...