China Semi-trailer Parts suppliers Title: Trailer Trailer Air Suspension Shock Absorber Product introduction: Export to various countries, high quality, high quality, Yahua production, factory direct seller, lowest price. Different specifications and sizes can be made according to users. Contact: Ma Alice, contact +86-13287219099. Factory direct sellers of trailer suspension, semi-trailer support, etc. An air suspension system is a configuration of a vehicle's suspension. It is compressed air formed by an air compressor and sent to the air chamber of the spring and shock absorber, by adjusting the pressure of the gas. This changes the height and softness of the vehicle. When the vehicle is driving at high speed, the suspension can be stiffened to improve the stability of the body; when driving on a low-speed uneven road for a long time, the control unit will soften the suspension to improve ride comfort.China Semi-trailer Parts suppliers website:http://www.yahuamachinery.com/semi-trailer-parts/