What are the industrial fields?

Industry refers to the work and process of collecting raw materials and processing them into products. Industry is the product of the development of social division of labor, which has gone through several stages of development: handicraft industry, machine industry and modern industry.

Industry is an important part of the secondary industry, which is divided into light industry and heavy industry.

The industrial sector with large product unit volume is heavy industry, while the light one belongs to light industry. The industrial sectors belonging to heavy industry include iron and steel industry, nonferrous metallurgy industry, metal material industry and machinery industry. Because chemical industry occupies a very prominent position in the development of modern industry, chemical industry is often separated from light and heavy industries in the industrial classification of industrial structure. In this way, the industrial structure consists of light industry, heavy industry and chemical industry. People often put heavy industry and chemical industry together and merge them into chemical industry, as opposed to light industry. Another criterion to distinguish between light and heavy industries is to call the department that provides the means of production heavy industry and the department that produces the means of consumption light industry. There are differences between the above two principles.