Cold-rolled steel sheet is formed by further processing of hot-rolled steel in a cold rolling mill, cooling at room temperature, and then a series of annealing or tempering rolling.

Compared with hot-rolled steel, cold-rolled steel has better surface finish, and also has better performance in tolerance, concentricity and straightness. It has good durability, heat resistance, heat reflectivity, and excellent processing.

The characteristics of performance, spraying performance and welding ability are widely used in safes, gun cabinets, and steel furniture such as confidential cabinets and filing cabinets.