C-beam steel: (1)Standard:ASTM, GB, JIS (2)Grade: HDG,PG,Powder Coated (3)Shape: C Channel Quick Details Standard: ASTM, GB, JISDimensions: ... t:1--3mm Surface treatment:hot dip galvanized, cold galvanized, pre-galvanized 4.Surface Treatment:hot dipped galvanized, cold galvanized, pre-galvanized. Our company was founded in May ... the basic guarantee.Any questions, please contact with me. C-beam steel