From the perspective of upstream industries, the price of raw materials produced in the parts industry is mainly determined by the market prices of bulk commodities such as steel, petroleum, and natural rubber. In recent years, due to the frequent fluctuations in the prices of resource commodities such as iron ore, petroleum, and natural rubber, the prices of steel, rubber, plastics and other chemical materials have also fluctuated sharply, which has caused a certain degree of stability in the production and operation of the domestic auto parts industry. pressure. From the downstream industry perspective, benefiting from the development of the domestic and foreign vehicle industry and the expansion of the consumer market, the domestic auto parts industry is showing a good development trend. The downstream customers of domestic component suppliers are mainly domestic and foreign vehicle manufacturers and their component suppliers. The concentration of customers is relatively high. Therefore, component companies are in a relatively weak position in negotiations with downstream customers.