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| Material Designation | Standard | Same grade, different standards. | Source factory |
|---|---|---|---|
| Q390A | GB /T 1591-2008
Alloy Steel |
||
| Q500C | GB /T 1591-2008
Alloy Steel |
||
| L04603 | GB /T 1591-2008
Alloy Steel |
||
| L06205 | GB /T 1591-2008
Alloy Steel |
- | |
| Q690E | GB /T 1591-2008
Alloy Steel |
||
| L04203 | GB /T 1591-2008
Alloy Steel |
||
| L03455 | GB /T 1591-2008
Alloy Steel |
||
| L05504 | GB /T 1591-2008
Alloy Steel |
- | |
| Q345C | GB /T 1591-2008
Alloy Steel |
||
| L03452 | GB /T 1591-2008
Alloy Steel |
||
| L04204 | GB /T 1591-2008
Alloy Steel |
||
| L06203 | GB /T 1591-2008
Alloy Steel |
- | |
| L05503 | GB /T 1591-2008
Alloy Steel |
- | |
| L03454 | GB /T 1591-2008
Alloy Steel |
||
| L03451 | GB /T 1591-2008
Alloy Steel |
||
| Q460D | GB /T 1591-2008
Alloy Steel |
||
| L04605 | GB /T 1591-2008
Alloy Steel |