... ISO9001 cert. guardrailsSpecification(general): 4318X312X82X3 mm, available in different sizesProfile: W-beam; Thrie-beamStandard: EU, U.S., AS/NZS, etc ... .Post: C channel post, I Post, Sigma post, Cylinder post and Z post, etc.Accessories ... the quality.Certificate: ISO9000:2001 guardrails (highway guard rails,w-beam guardrails, safety barriers, crash barriers, steel barriers,road ...