... Metal, Zinc Coating, Conversion Coating, Primer Coating, Finish Coating color coating steel sheet is made with cold-rolled galvanized steel sheet ... deoiling, phosphating and chromating, formed by organic coating and baking.Tests prove that color sheet, heated with 120 degree in bader for ... far more even, stable and better than shaped metal brush coating, and can keep bright without rusting for 15 or 20 ...