Pickling board market is mainly reflected in the following four aspects: replacement of cold rolling, replacement of hot rolling, replacement of imports and replacement of small pickling. The substitution of import and small pickling is actually an existing market, the market is limited and can not be completely replaced. With the rapid development of automobile, machinery, light industry and other industries, enterprises are facing great pressure brought by market competition, and the requirements for product cost and product quality are increasing. Pickling board completely replaces part of cold plate and hot plate with its higher cost performance, which will gradually be recognized by users. The main processes of hot rolled pickling plate include laser welding, stretching straightening, turbulent pickling, online leveling, edge cutting, online oiling, etc.