The efficient bedspring design that this manual uses for road car only is made provided a data, content reflected current design and workmanship level.
Whole book divides an order in all 22, include to design computational foundation, carry a fixed design, assemble positional control, material and treatment, fatigue life is analysed, stable lever design applies citing to wait. The architect that can offer the bedspring that twist lever, maker consults with the person that use.
Xin Huashu inn is issued August 1988 the first edition