No Rust problem + Perfect looking

Method:
> single leaf by electrophoretic painting
> Assembling spring by electrostatic painting

Benefits for customers:
★ Salt spray testing > 500 hours beat general industrial level 200 hours,avoid rust possiblity
★ Perfect-looking -- uniform painting, complete painting, no scratch

Pre short-peening                                                                     

Method:

> Make short peening under rated capacity

Benefits for customers:

★180,000 times fatigue life beat general level 150,000 times;

★bear heavier capacity and use longer time;                                

Pre-pressing and adjust                                                                                

Method:

> Make pre-pressing under rated capacity

Benefits for customers:

★select out leaf spring whose camber is not qualified