PCM color steel plate is a kind of continuous roll coating color steel plate, which has brilliant color, not only has excellent forming process performance, corrosion resistance and flexibility of paint layer, but also has excellent economic benefits. Considering the development trend of social economy and environmental protection. According to the data analysis of ECCA, PCM color steel plate is better than the traditional powder spray plate in productivity, capital turnover storage, environmental protection effectiveness and actual appearance effect. Its comprehensive cost is only equal to 90% of the powder spray plate. Therefore, this kind of color steel plate is basically used in the decoration materials of household electrical appliances in Europe In China, Haier means that the powder spraying plate is gradually replaced by the color steel plate. On the basis of traditional PCM color steel plate, Midea color steel plate company has developed conductive PCM color steel plate and sand surface PCM color steel plate with roller coating process according to the integration of world resources, which has become the domestic production and manufacturing base of sand surface PCM color steel plate. The products not only meet the ROHS environmental protection level of the European community, but also have achieved international status in terms of characteristics and quality as assessed by the science and Technology Commission and the economic and Trade Commission. Colorful pre coated steel plate PCM, Changing traditional spray painting into continuous sizing of thick steel plate is conducive to metal surface treatment and sizing quality control, and will not have defects such as edge blind area caused by spray painting; moreover, chromium free solution is selected to carry out roll coating organic chemical solution to solve the problem of immediate dryness, without traditional dip coating organic chemical solution to solve the environmental pollution and damage to the natural environment, and environmental protection is considered regulations.