C-beam steel: (1)Standard:ASTM, GB, JIS (2)Grade: HDG,PG,Powder Coated (3)Shape: C Channel Quick Details Standard: ASTM, GB, JISDimensions: 41*41mm,41*21mmGrade: HDG,PG,Powder CoatedPlace of Origin: Tianjin China (Mainland)Brand Name: ZTShape: C ChannelApplication: Structural RoofingPerforated Or Not: Is PerforatedPackaging & Delivery Packaging Detail:Bundle packing .Delivery Detail:Within 20-25 ...