... /4mm 3.Post:140*4.5mm*height 4.Column spacing: 2-4m Corrugated beam barrier:1.Name:corrugated beam barrierhighway guardrail2. ... long and durable, easy for installation.7.Post types:C channel post, I Post, Sigma post, Cylinder post and Z post, etc.8.Accessories: spacer, blackout, ... , U.S., AS/NZS, etc.10.Main Types:(1)W-Beam(2) workshop :(3)installationHaotian Hardware Wire Mesh Products Co.,LtdAdd ...