Auxiliary, accessory finished products used in daily life and industrial production

Auxiliary, accessory finished products used in daily life and industrial production. In the early days, it was made of metal materials such as gold, silver, copper, iron and tin, hence the name.

In addition to the use of various metal materials, it is also widely used in non-metallic materials such as plastics and glass fibers. Hardware products have played an important role in the survival and development of human beings. With the development of social economy and the refinement of social division of labor, hardware products are gradually enriched and improved, and varieties are becoming more and more.

Modern hardware products can be divided into three categories according to their purposes: daily hardware for daily life, hand tools for production and living aids, construction of joints, fasteners and supporting facilities in buildings and structures. Hardware. Metal materials are generally made by forging blanks, machining, surface treatment and other processes. The purpose of surface treatment is to prevent corrosion and aesthetics. Non-metallic materials are mostly made of mold or pressure forming, which is light and convenient.