Hardware: Traditional hardware products, also called "small hardware". Refers to five metals: gold, silver, copper, iron, and tin. Can be made into art objects or metal devices such as knives and swords after manual processing. Hardware in modern society is more extensive, such as hardware tools, hardware parts, daily hardware, construction hardware and security supplies. Most hardware products are not final consumer goods. History entered the modern industrial society, and the metal-hardware industry has developed rapidly. The hardware industry has played an inestimable role in the development of the national economy. Hardware products have also become an indispensable industrial link in industrial manufacturing. Instead, it is used as supporting products for industrial manufacturing, semi-finished products, and tools used in the production process. Only a small number of daily hardware products are necessary consumer goods for people's daily life. In the National Economy Industry Classification of the National Bureau of Statistics, manufacturing is the third largest industry. These include: production and production of living materials, such as: agricultural and sideline products, food and beverage, tobacco, textiles, clothing, leather, wood furniture, printing and sports supplies, and pharmaceutical manufacturing; manufacturing of production materials, such as petrochemicals, chemical fibers, rubber and plastic , Non-metal product manufacturing, metal smelting and processing, metal product manufacturing, general equipment manufacturing, industry-specific equipment manufacturing, and transportation equipment manufacturing, electrical equipment, communications electronics, and so on. The related products in the category of metal products in manufacturing and general parts and components in general equipment manufacturing constitute the "small hardware" in the usual sense. It can be seen that 'small hardware' is not an existing industry category, but a cross combination of the above-mentioned several metal products-hardware products. In the entire manufacturing industry, the responsibility of 'small hardware' is to provide manufacturing enterprises with parts and production tools, not as industry-specific equipment for final use. Nevertheless, we cannot deny the important role of "small hardware" in the social production process: "small hardware" and manufacturing are an inseparable whole that is intertwined.