What exactly does chemical industry mean?

Chemical industry is the abbreviation of chemical industry, chemical engineering, chemical technology and chemical unit operation, which usually refers to chemical industry or chemical engineering. The chemical industry includes petrochemical industry, chemical metallurgy, chemical medicine, polymer, coating, grease and so on.

The relationship between human beings and chemical industry is very close. In modern life, chemical products are indispensable almost anytime and anywhere. From material life such as food, clothing, housing and transportation to spiritual life such as culture, art and entertainment, chemical products are needed to serve them.