Hardware: Traditional hardware products, also known as "hardware". Refers to gold, silver, copper, iron, tin five metals. By manual processing can be made into knives, swords and other art or metal devices. The hardware of modern society is more extensive, such as hardware tools, hardware parts, daily hardware, building hardware and security supplies. Most hardware products are not final consumer goods.History into the modern industrial society, metal - hardware products industry is developing rapidly, hardware industry in the development of the national economy has played an immeasurable role, hardware products have become an indispensable industrial link in industrial manufacturing.But as a supporting product of industrial manufacturing, semi-finished products and tools used in the production process and so on. Only a small part of daily hardware products are necessary tools for people's lives.In the National economic industry classification of the National Bureau of St...