专业销售机制铸铁管,球墨铸铁管,柔性铸铁管,铸铁排水管,A型铸铁管,B型铸铁管,W型铸铁管、球磨铸铁井盖箅子

| 变径管 | 单位(mm) | |||
| 公称口径 | L | L1 | L2 | |
| DN | DN1 | |||
| 75 | 50 | 120 | 65 | 55 |
| 100 | 50 | 120 | 65 | 55 |
| | 75 | 120 | 65 | 55 |
| 125 | 50 | 120 | 65 | 55 |
| | 75 | 120 | 65 | 55 |
| | 100 | 120 | 65 | 55 |
| 150 | 75 | 130 | 65 | 55 |
| | 100 | 130 | 65 | 65 |
| | 125 | 130 | 65 | 65 |
| 200 | 100 | 133 | 65 | 68 |
| | 125 | 133 | 65 | 68 |
| | 150 | 133 | 65 | 68 |