High pressure oil can

The national bureau of statistics of the division of light and heavy industry after close to a standard, in the China statistical yearbook of heavy industry is defined as: the material supplies for the national economy departments technology based the main industrial production data. Light industry: industries that mainly provide consumer goods and produce hand tools. In the research, as mentioned above, heavy industry and chemical industry are often referred to as heavy chemical industry.

Heavy industry: refers to the main means of production that provides the material and technical basis for all sectors of the national economy. According to its production nature and product use, it can be divided into the following three categories:

(1) mining (cutting) industry refers to the exploitation of natural resources, including oil exploitation, coal mining, metal mining, non-metal mining and timber cutting.

(2) the raw material industry refers to the industry providing basic materials, power and fuel for various sectors of the national economy. Including metal smelting and processing, coking and coke, chemistry, chemical raw materials, cement, wood-based panels and electric power, petroleum and coal processing industries;

(3) processing industry refers to the industry that reprocesses and manufactures industrial raw materials. These include industries that equip all sectors of the national economy with machinery and equipment manufacturing industries, metal structures and cement products, as well as industries that provide agricultural inputs such as fertilizers and pesticides.

Light industry: an industry that mainly provides consumer goods and manufactures hand tools.

According to the materials used, they can be divided into two categories:

(1) light industry with agricultural products as raw materials refers to light industry with agricultural products as basic raw materials directly or indirectly. Mainly including food manufacturing, beverage manufacturing, tobacco processing, textile, sewing, leather and fur production, paper and printing industries;

(2) light industry with non-agricultural products as raw materials refers to light industry with industrial products as raw materials. Mainly include stationery and sporting goods, chemical manufacture, synthetic fiber, daily chemical products, household glass products, daily metal products, hand tools, medical equipment manufacturing, cultural and office machinery manufacturing industries.

The repair industry has been classified as a service industry in the tertiary industry, which is characterized by a virtual product of an immaterial type, such as technical service.