¢ 12 × 69 × 210 × 10.5 red, used for motorcycle rear central shock absorber, drawn from 60Si2Mn oil 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: 10.5
2) Number of active coils: 8.5
3) Free height: 210mm
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: red spray