2022-01-15
On the continuous unit, cold-rolled steel strip and galvanized steel (electro-galvanized and hot-dip galvanized) are used as the bottom plate. After surface pretreatment (degreasing, chemical treatment), one or more layers of liquid coating are applied by roller coating, and the plate obtained after baking and cooling is a coated steel plate.
Because the coating can have multiple colors, the coated steel sheet is usually called a color coated steel sheet. Since the coating is carried out before the steel sheet is formed and processed, it is also called pre-coated steel sheet.