The number of parts on a car is basically maintained at around 30,000. From screws as small as nails to chassis steel frames, are there some inconspicuous parts with a high technical content?
It is a matter of course to fasten your seat belt after getting into the car. But have you ever wondered how this simple yet life-saving gadget really works?
Four-point seat belts are a type of seat belt that adds two shoulder straps to a two-point seat belt.
In recent years, with the increase in the number of cars, traffic safety issues have received increasing attention. Among them, the importance of seat belts as a basic car safety device cannot be ignored.
