Beam Crash Barrier 1 guardrail:4320*310*85*3 or 4mm 2 post:square, round, sigma,H type,C type, U type 3 spacer 4 bolt Beam Crash BarrierSpecification (general): 4230X310X83X34mm, available in different sizesMaterial: Q235 hot rollingProfile: W-beam,Post: C channel post, I Post, Sigma post, Cylinder post and Z post, etc.Accessories: spacer, blockout, separator, terminal ends, connector, bolt & ...