... ; ASTM A755M Feature2.steel grade:TSGCC,CGCC,DX51D3.Base material:galvanized steel coil HDG.GZ4.Zinc coating Z40Z275 or AZ50-1505 ... micron)9.sizewidth:600-1250mmtickness:0.15-1.5mm10.color sample:withe(RAL9002,9003,9016,9010)\blue\red\green\brown and ... or 610mm13.quantity:25MT min as a trial order GI,galvanized steel, hot-dipped galvanized iron