Industrial gases have a wide range of applications, including chemical industry, medical health, metallurgy, mining, semiconductor industry, etc. Industrial gases need not be less in production and life, and the commonly used industrial gases are introduced under the scope of application:

1. Metal welding, cutting and various combustion devices of the combustion gas and some process oxidation gas.

2. Machinery industry: metal welding, cutting can greatly improve the efficiency.

3. Chemical industry: manufacturing pharmaceuticals, dyes, explosives and other chemical products, in addition to strengthening production (such as the production of yellow phosphorus with oxygen blowing, oxygen injection of inferior coal, etc.).

4. Electronics industry: in addition to being used as a combustion gas, or the manufacturing of semiconductor integrated circuit oxidation gas, high purity oxygen or an important gas raw material for the manufacture of optical fiber.

5. A wide range of national defense uses: the largest use of rockets.

Nitrogen in Industrial Gases:

1. Nitrogen-filled packaging, nitrogen-filled bulbs. Grains, cans, fruits, etc., are often packed with nitrogen for preservative purposes. Filling the lamp with nitrogen can prevent the oxidation of tungsten wire and slow down the volatilization rate of tungsten wire, and extend the service life of the lamp.

2. Chemical synthesis, is an important raw material of synthetic fiber (nylon, acrylic fiber), synthetic resin, synthetic rubber, etc., can also make fertilizer.

3. The production of automobile tires, prevent the tire burst and lack of air rolling, extend the service life of tires, reduce fuel consumption, protect the environment.

4. Industrial gas can also be used as a protective gas, under normal conditions the chemical properties of nitrogen is very inactive, so it is often used as a protective gas. Nitrogen gas is used to protect metals from oxidation when welding.

5. The protection of historical relics, in the museum, often some valuable and rare pages, books stored in the cylinder full of industrial gas nitrogen, can make the moth in the nitrogen suffocated.