7￠7×53×203×14 Chrome-plating, used for motorcycle rear shock absorber, drawn from 72B quenching spring wire, wound into warp, then completed and set by multi-channel processes, and done surface treatment according to the requirements of customers. (With some technical requirements)

Technical Requirements:
1) Total number of coils: 14
2) Number of active coils: 12 
3) Free height: 203mm
4) Port deburring
5)Both ends of the surface were wore off, circumference is not less than 3/4
6) Shot blasted: pills ￠0.8mm~￠1.2mm, intensity 0.2 ~ 0.45A, coverage of 80%
7) Surface treatment: chrome-plating