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| Material Designation | Standard | Same grade, different standards. | Source factory |
|---|---|---|---|
| A11603 | GB /T 1222-2007
Spring Steel |
||
| 60Si2Mn | GB /T 1222-2007
Spring Steel |
||
| 50CrVA | GB /T 1222-2007
Spring Steel |
||
| 60Si2CrVA | GB /T 1222-2007
Spring Steel |
- | |
| 60Si2CrA | GB /T 1222-2007
Spring Steel |
||
| A21553 | GB /T 1222-2007
Spring Steel |
||
| 55CrMnA | GB /T 1222-2007
Spring Steel |
- | |
| U20652 | GB /T 1222-2007
Carbon Steel |
||
| A77552 | GB /T 1222-2007
Spring Steel |
||
| A22603 | GB /T 1222-2007
Spring Steel |
||
| 85 | GB /T 1222-2007
Spring Steel |
||
| 60CrMnBA | GB /T 1222-2007
Spring Steel |
- |