Views: 0 Author: Site Editor Publish Time: 2022-02-15 Origin: Site
1) Reliable work
Ensure that the tractor and the trailer are hooked up reliably and smoothly, and are easily and quickly disengaged;
2) Make the car and train have better maneuverability;
3) It can smoothly transmit the traction force to the trailer, and can absorb the impact load generated during the running of the car and train;
4) Sufficient strength, stiffness and hardness to withstand the action and wear of various forces during driving.