The salted board has excellent thermal insulation performance and structural stability, which can isolate the outside temperature and ensure constant temperature and humidity inside the cold storage. It is made of high-strength metal materials, resistant to corrosion and wear, and has good pressure and earthquake resistance. It can stably support the cold storage structure for a long time and ensure safe and reliable operation. At the same time, the surface of the metal plate is easy to clean, meets hygienic requirements, and can ensure the quality and safety of stored goods.