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GB/T 16270
|
Item |
Steel Mark |
Specification |
Thickness Range(mm) |
|
1 |
Q420 C |
GB/T 16270 |
6～100 |
|
2 |
Q420 D | ||
|
3 |
Q420 E | ||
|
4 |
Q460 C | ||
|
5 |
Q460 D | ||
|
6 |
Q460 E |
10～100 | |
|
7 |
Q500 D | ||
|
8 |
Q500 E | ||
|
9 |
Q550 D | ||
|
10 |
Q550 E | ||
|
11 |
Q620 D |
10～100 | |
|
12 |
Q620 E | ||
|
13 |
Q690 D | ||
|
14 |
Q690 E |
