Steering rod is an important part of automobile steering mechanism. It plays a role of motion transmission in steering system, and directly affects the stability of automobile handling, safety of running and service life of tires. Steering rod is divided into two categories, namely, steering rod and steering rod. The steering rod is responsible for transferring the movement of the steering rocker arm to the steering knuckle arm. The steering bar is the bottom edge of the steering trapezoid mechanism, which is the key component to ensure the right and left steering wheels to produce the correct motion relationship.