Do you know about car trailers?

The tow hook is also called a tow ball, a tow bar, and a tow bar. Strictly speaking, a complete trailer hitch system includes three parts: a fixed bracket, a ball head and a power control system. In some cases, the power harness is not a necessity and can be purchased separately when needed.

Trailer system: a trailer ball with a diameter of 50mm. The lower part of the ball is a curved support arm, like a goose's neck. Different styles of spheres have different curvatures, lengths, and heights. The sphere is made of high-strength solid casting, which is the concentrated part of the force during the pulling process. It has high requirements on the strength of the steel and the precision of processing.