The continuous casting slab or primary rolling slab is used as raw material, heated by stepping furnace, dephosphorized by high pressure water and then entered into roughing mill. The roughing material enters finishing mill after cutting head and tail, and then carried out computer controlled rolling. After the final rolling,

Color coated coil is hot galvanized plate, hot galvanized aluminum zinc plate, galvanized plate and other substrates, the surface pretreatment (chemical degreasing and chemical conversion treatment), on the surface coated with a layer or several layers of organic coating, and then after baking curing products. Because coated with a variety of different colors of organic paint color steel coil plate named, referred to as color coated coil.