The color coated sheet products are mainly made by pressing the color coated roll. Before installing the next steel plate, each color coated sheet must be completely fixed. Fixation must start at the center of the color coated panel to prevent storage from damp, then extend to both sides, and finally fix the overlap edge of the color coated panel, which has become a new type of building materials more and more popular. The working quality determines the quality of the coating, and directly determines the physical storage indexes such as flexibility and impact resistance of the coating.In addition to the protective effect of zinc, the organic coating on the surface of hot-dip galvanized color coated sheet also plays the role of isolation and protection against rust during storage. The service life of hot-dip galvanized color coated sheet is longer than that of hot-dip galvanized sheet. For the roof walls and doors of industrial and trade buildings, such as steel structure factory buildings, airports, warehouses and refrigeration, the use of coloured steel plates in civil buildings is less. The increase of domestic production of galvanized sheet is mainly due to the increase of production of hot-dip galvanized sheet. In 1998-2002, the production of hot-dip galvanized sheet increased from 970,000 tons to 2.2 million tons. The storage location of color-coated sheet should be reasonably arranged so as to facilitate access and minimize unnecessary movement. Passivation film thickness is not monitored and passivation quality can not be guaranteed.