The cold-rolled coil products are accurate in size, uniform in thickness, and the thickness difference of the coils generally does not exceed 0.01-0.03 mm or less, which can meet the requirements of high-precision tolerances. Among them, the construction industry is mainly used to manufacture anti-corrosion industrial and civil building roof panels, roof grilles, etc.The light industry uses them to make household appliances shell, civil chimneys, kitchen appliances, etc. The automotive industry is mainly used to manufacture corrosion-resistant parts of cars, etc. Agriculture, animal husbandry and fisheries are mainly used for food storage and transportation, meat and aquatic products freezing processing equipment, and commerce is mainly used as material storage. Transportation, packaging, etc.