The hot-rolled steel coil is used as the raw material, and the oxide scale is removed by pickling and then cold-rolled, and the finished product is rolled hard coil. Rolled hard coils are annealed to become cold-rolled coils.It is divided into two kinds: rolled hard coil plate and cold rolled coil plate.It is used in automobile manufacturing, electrical products, rolling stock, aviation, precision instruments, food canning, etcThe field of architecture. Cold-rolled coils are used to manufacture building panels, roofs, partitions, doors and windows, etc., which can enhance the stability and aesthetics of buildings. 23 Automobile manufacturing. Cold-rolled coil is used to manufacture automobile body structure, door, hood and other parts, which can improve the strength, rigidity and corrosion resistance of automobile. Household appliances manufacturing.

Cold-rolled coil is used to manufacture the shell and internal structural parts of household appliances, such as refrigerators, washing machines, air conditioners, etc. Its corrosion resistance and surface gloss are helpful to prolong the service life of household appliances. 23 Packaging industry. Cold-rolled coils are used to manufacture various packaging materials, such as metal cans and metal bottles, and their good corrosion resistance can ensure the quality and service life of packaging materials. five Electronic industry. Cold-rolled coil is used to manufacture the shell and internal structural parts of electronic products and equipment, such as mobile phones, computers, televisions, etc. Its high strength and lightweight characteristics can meet the requirements of electronic products for portability, beauty and durability. Other fields. Cold-rolled coils are also widely used in manufacturing industrial pipelines, chemical containers, food processing equipment, etc. Their high surface finish, high strength and corrosion resistance make them suitable for petroleum.