In recent years, with the rapid development of the steel structure industry, the matching color steel plate project is also favored by the majority of users, especially industrial and mining, with its advantages of fast installation, convenient disassembly, strong water insulation performance and good thermal insulation effect.The substrate of color plate is cold rolled substrate, hot galvanized and electrogalvanized substrate.The coating types can be divided into polyester, silicon modified polyester, vinyl polyethylene dee difluoride and plastic sols.The surface state of color steel plate can be divided into coating plate, embossing plate and printing plate, and color steel plate is widely used for construction home appliances and transportation industries. For the construction industry is mainly used for the roof wall and doors of industrial and commercial buildings of steel structure factories, airports, warehouses and freezing, the civil building using color steel plate gradually increases.