Although the structure of the mold may vary due to the variety and performance of plastics, the shape and structure of plastic products, and the type of injection machine, the basic structure is the same
Zero tire pressure continuation means that in the absence of air, the tires can continue to drive at a distance of about 80 kilometers, so as to ensure that the car can safely reach the maintenance site.
The spare tire doesn't do nothing, it must be maintained.
1. Regularly check the tire pressure. If a spare tire is replaced, it will not work as it should, and must be checked regularly.