Corrugated Galvanized Sheet Colour coated steel coil, GI or GLbase thickness: 0.14-2.0mm, Width: 20 ... steel coils JIS G3312,CGCC,Colour coated steel coil,GI or GL base,thickness:0.14-2.0mm,Width ... 550GDPrepainted steel coilsJIS G3312,CGCC,Colour coated steel coil,GI or GL base,thickness:0.14-2.0mm,Width ... epoxy. 4) The Prepainted steel coil is produced by GI or GL and color-coated with the paint produced ...