- Oil Harderned and Tempered Steel Wire Mechanical Spring
- 2016-11-19 10:53
- Oil Harderned and Tempered Steel Wire MechanicalSpringGrade:55CrSi,60Si2Mn,65MnDia:6.0~16.0mmStandards: ASTM, BS, DIN, G
- oil tempered spring steel wire
- 2016-10-29 08:53
- Advantage: