5. The shock absorber has simple structure, convenient use and maintenance, almost no need for repair, no wear, no rust, no need for oil lubrication, is not sensitive to the role of water and dust, does not produce sudden damage in use, is reliable in use, low in cost and has a long enough service life
7. Small mass, easy installation and disassembly
8. Impact stiffness is higher than static stiffness and dynamic stiffness, which is conducive to impact deformation