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product center
| 产品代码 | 公称尺寸(DN) | 外径（mm） |
| B10-2301601 | 15xR1/2" | 16xR1/2" |
| B10-2302001 | 20xR1/2" | 20xR1/2" |
| B10-2302002 | 20xR3/4" | 20xR3/4" |
| B10-2302502 | 25xR3/4" | 25.4xR3/4" |
| B10-2302503 | 25xR1" | 25.4xR1" |
| B10-2303203 | 32xR1" | 32xR1" |
| B10-2303204 | 32R1-1/4" | 32xR1-1/4" |
| B10-2304004 | 40xR1-1/4" | 40xR1-1/4" |
| B10-2304005 | 40xR1-1/2" | 40xR1-1/2" |
| B10-2305005 | 50xR1-1/2" | 50.8xR1-1/2" |
| B10-2305006 | 50xR2" | 50.8xR2" |