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| 公稱通徑 | 管子外徑（mm） | 國(guó)標(biāo)厚度（mm） | 加厚（mm） |
| 15*1/2" | 16.0*1/2" | 0.8 | 1.0 |
| 20*1/2" | 20.0*1/2" | 1.0 | 1.2 |
| 20*3/4" | 20.0*3/4" | 1.0 | 1.2 |
| 20*1" | 20.0*1" | 1.0 | 1.2 |
| 25*3/4" | 25.4*3/4" | 1.2 | 1.5 |
| 25*1" | 25.4*1" | 1.2 | 1.5 |
| 25*1-1/4" | 25.4*1-1/4" | 1.2 | 1.5 |
| 32*1" | 32.0*1" | 1.2 | 1.5 |
| 32*1-1/4" | 32.0*1-1/4" | 1.2 | 1.5 |
| 32*1-1/2" | 32.0*1-1/2" | 1.2 | 1.5 |
| 40*1-1/4" | 40.0*1-1/4" | 1.2 | 1.5 |
| 40*1-1/2" | 40.0*1-1/2" | 1.2 | 1.5 |
| 50*1-1/2" | 50.8*1-1/2" | 1.2 | 1.5 |
| 50*2" | 50.8*2" | 1.2 | 1.5 |
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