Taking the car as an example, plastic products are widely used in the car industry to replace various precious non-ferrous metals and alloy materials. This not only improves the appearance of the car and the flexibility of planning, but also reduces the cost of parts processing, assembly and repair. , And can also reduce the energy consumption of cars.

　　 General Motors in the United States has conducted a test. In the manufacturing process of a car equipment, a total of 38 metal parts are required, and the cost is as high as 75 US dollars. Similarly, if engineering plastics are used to integrate all components into one component, the cost is only 30 US dollars, which shortens the assembly time by 55% and achieves a qualified yield of 99%. This is due to the fact that the production process of engineering plastics can integrate parts, the secondary processing cost is low, the planning cycle is shortened, the quality is good, and the productivity is high.