pre-painted galvanized steel coil,PPGI,color painted steel,RALcolor,thickness 0.18-1.50mm,width 914,1000,1200,1219,1250mm Features:Galvanized ... degrease, rinse, chemical transform the cold-rolledsteel coils or galvanized steel coils. Then we make primary and refined lavation for ... to the American standards5) The combining force between the galvanized steel and the paint is very strong6) The surface is ...