Chemical Industry
Chemical industry is the abbreviation of "chemical process", "chemical industry", "chemical engineering" and so on. Any technology that uses chemical methods to change the composition or structure of a substance or synthesize a new substance is a chemical production technology, that is, a chemical process, and the resulting product is called a chemical or chemical product. In the beginning, these products were produced in handicraft workshops, and later evolved into factories, and gradually formed a specific production industry, the chemical industry.