... .5mm*height 4.Column spacing: 2-4m Corrugated beam barrier:1.Name:corrugated beam barrierhighway guardrail2.Material: galvanized steel sheet 3.Color ... durable, easy for installation.7.Post types:C channel post, I Post, Sigma post, Cylinder post and Z post, etc.8 ... , U.S., AS/NZS, etc.10.Main Types:(1)W-Beam(2) workshop :(3)installationHaotian Hardware Wire Mesh Products Co.,LtdAdd ...