Semi-trailer suspension is an elastic device in the car that connects the frame and the axle. It generally consists of elastic elements and guiding mechanisms. damping
The main task is to alleviate the impact transmitted to the frame by the uneven road, so as to improve the comfort of the car.
Suspension is an important assembly in the car, which elastically links the frame and the wheel, which is related to the various uses of the car performance. From the outside, the semi-trailer suspension car suspension is a car assembly that is difficult to achieve perfect requirements, http://www.hkaxle.com/suspensi....on/american-suspensi