Auxiliary and accessory products used in daily life and industrial production. The early use of gold, silver, copper, iron, tin and other metal materials, which is named.

Hardware products

In addition to the use of a variety of metal materials, but also widely used in plastic, glass fiber and other non-metallic materials. Hardware products play an important role in the survival and development of human beings. With the development of social economy and social division of labor, hardware products gradually enriched and perfected, more and more varieties. Modern hardware products can be divided into three major categories: daily life of daily use hardware, as a tool for production and life of the hand tools, as the building and construction of the connecting parts, fasteners and supporting facilities of building hardware. Hardware products of metal materials by forging billet, machining, surface treatment and other steps. The purpose of the surface treatment is to prevent and beautiful. Non metallic materials of metal products more than the use of mold forming or pressure molding, with light and convenient features.