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| Material Designation | Standard | Same grade, different standards. | Source factory |
|---|---|---|---|
| U20702 | GB /T 699-1999
Carbon Steel |
||
| 50Mn | GB /T 699-1999
Carbon Steel |
||
| 45 | GB /T 699-1999
Carbon Steel |
||
| U20352 | GB /T 699-1999
Carbon Steel |
||
| 65 | GB /T 699-1999
Carbon Steel |
||
| U20402 | GB /T 699-1999
Carbon Steel |
||
| 15F | GB /T 699-1999
Carbon Steel |
- | |
| 25# | GB /T 699-1999
Carbon Steel |
||
| U20082 | GB /T 699-1999
Carbon Steel |
||
| U21352 | GB /T 699-1999
Carbon Steel |
||
| 60# | GB /T 699-1999
Carbon Steel |
||
| 40Mn | GB /T 699-1999
Carbon Steel |
||
| 60Mn | GB /T 699-1999
Carbon Steel |
||
| U20080 | GB /T 699-1999
Carbon Steel |
- | |
| U21202 | GB /T 699-1999
Carbon Steel |