... short delivery time according to the client's inquiry highway guardrail (crash barriers, safety barriers, road barriers)highway guardrails:normal specification ... Cylinder post, etc.Accessories: Connector, separator, orrset blocks, terminal ends, bracket, bolt & washer etc.Fish: Hot dip galvanizing, powder coated or ... check the quality.Certificate: ISO9000:2001 and ISO14001:2001. highway guardrail