Plastics industry is a polymer chemical industry that manufactures synthetic resins and plastic products. It also includes plastics processing machinery and mold manufacturing industries. The production volume and varieties of the plastics industry mainly depend on the production and development of synthetic resins. Therefore, they are closely related to petrochemicals. Plastics are also characterized by their light weight, high specific strength, corrosion resistance, high production efficiency, and low energy consumption. Some areas of the machinery manufacturing, construction and other sectors can replace metal and wood; in the electronics, electrical and other sectors, plastic has become one of the necessary materials; plastic products are widely used in agricultural production and people's lives; in terms of packaging, There is no modern plastic packaging industry.
Plastic molding processing methods include: press molding, injection molding, blow molding, casting, calendering, filament winding, extrusion molding, coating molding, and foam molding.
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