... Galvanized Steel Sheet JIS G3312,CGCC,Colour coated steel coil,GI or GL base,thickness:0.14-2. ... Coated Galvanized Steel SheetJIS G3312,CGCC,Colour coated steel coil,GI or GL base,thickness:0.14-2. ... polyester. Backside: 5-8microns primer epoxy. 4) The Prepainted steel coil is produced by GI or GL and color ... is very strong 6) The surface of Prepainted Steel Coil is normal or can be covered by film. 7 ...