The aluminium sheet for ps plate is one of the basic elements for making a high quality PS plate. After long-term development, through years of production research, in recent years, the quality of PS base plate of aluminum processing plants in China has been considerably improved, it is necessary to improve the stability of grades and quality to truly achieve the quality requirements of the aluminum base plate for the PS plate factory, we aluminum ps plate factory must also work hard to creating conditions for the popularization of high-end PS and CTP plates.