|
公称直径DN
mm |
壁厚
mm |
最小壁厚
mm |
|
50 |
3.5 |
3 |
|
75 |
3.5 |
3 |
|
100 |
3.5 |
3 |
|
125 |
4 |
3.5 |
|
150 |
4 |
3.5 |
|
200 |
5 |
4 |
|
250 |
5.5 |
4.5 |
|
300 |
6 |
5 |
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