1. Oil companies provide automobile fuel.
2. Raw material enterprises such as steel, nonferrous metals, rubber and plastics provide raw materials needed for automobile manufacturing.
3. Chemical enterprises provide automobile lubricating oil, coolant, paint and other chemical products.
4. battery enterprises, providing automobile power batteries,
5, auto parts enterprises, such as engines, transmissions, chassis, tires, etc.
6. Automobile manufacturers, such as Volkswagen, Toyota, Honda and Ford. Responsible for vehicle production.
7. Automobile design enterprises are responsible for automobile appearance and interior design.