pre-painted galvanized steel coil,PPGI,color painted steel,RALcolor,thickness 0.18-1.50mm,width 914,1000 ... rinse, chemical transform the cold-rolledsteel coils or galvanized steel coils. Then we make primary and refined lavation for ... perfect building materials in construction, transportation, manufacture, light industry, office furniture, household electric appliances,food package, and other areas ...