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| Material Designation | Standard | Same grade, different standards. | Source factory |
|---|---|---|---|
| 4J47 | GB /T 37797-2019
Alloy Steel |
||
| 3J21 | GB /T 37797-2019
Alloy Steel |
||
| 2J112 | GB /T 37797-2019
Alloy Steel |
- | |
| 3J01 | GB /T 37797-2019
Alloy Steel |
||
| 2J209 | GB /T 37797-2019
Alloy Steel |
- | |
| 4J343 | GB /T 37797-2019
Alloy Steel |
- | |
| 4J329 | GB /T 37797-2019
Alloy Steel |
- | |
| 4J58 | GB /T 37797-2019
Alloy Steel |
||
| 4J45 | GB /T 37797-2019
Alloy Steel |
||
| 4J78 | GB /T 37797-2019
Alloy Steel |
||
| 4J128 | GB /T 37797-2019
Alloy Steel |
- | |
| 4J38 | GB /T 37797-2019
Alloy Steel |
||
| 4J335 | GB /T 37797-2019
Alloy Steel |
- | |
| 1J12 | GB /T 37797-2019
Alloy Steel |
||
| 4J480 | GB /T 37797-2019
Alloy Steel |
- | |
| 2J07 | GB /T 37797-2019
Alloy Steel |
||
| 4J336 | GB /T 37797-2019
Alloy Steel |
- | |
| 4J6 | GB /T 37797-2019
Alloy Steel |