Blackboard Chalkboard Steel Coil 

requirements for environmentally friendly development. Cold rolling on continuous line Strip steel, galvanized strip steel (electro-galvanized and hot-dip galvanized) as the base plate, after surface preparation Treatment (degreasing and chemical treatment), apply one or more layers of liquid by roller coating The plate obtained after coating, baking and cooling is a coated steel plate. Because of coating The coating layer can have various colors. It is customary to call coated steel plates color-coated steel plates. layer steel plate. And because the coating is carried out before the steel plate is formed and processed, in foreign countries This is called pre-coated steel.