Oil ＆ Gas
The upstream of the petrochemical and plastics rubber industry chain is crude oil, and the middle reaches are petrochemical basic raw materials such as ethylene, propylene, butadiene, benzene, phenol, etc., which are produced by cracking of upstream raw materials, and chemical reactions such as polymerization, esterification and alkylation of the above raw materials. Chemical raw materials such as rubber produced afterwards. Downstream is a daily necessities used in various food and clothing industries, such as rubber products, which are processed by chemical raw materials such as rubber. For example, tires, washers, rubber keyboards, self-adhesive rubber, earphone covers, etc.