... 4.Steel Grade: S250-550GD Color Coated Galvanized Steel Sheet JIS G3312,CGCC,Colour coated steel coil,GI or GL base,thickness:0.14 ... -2.0mm,Width:20-1250mmColor Coated Galvanized Steel SheetJIS G3312,CGCC,Colour coated steel coil,GI or GL base,thickness:0.14 ... -2.0mm,Width:20-1250mmS250-550GD1) Thickness of Prepainted Steel Coil: 0 ...