两片式三通
优点：
描述：
描述：
产品规格（单位: MM）
| Size | D | d | L1 | L2 | L3 | I | H | n | M | e |
| 2" | 69.4 | 60.4 | 124.6 | 113.0 | 62.3 | 30.0 | 27.0 | 7.0 | M6*25 | 7.0 |
| 3" | 99.6 | 89.0 | 188.0 | 160.0 | 94.0 | 48.0 | 27.0 | 11.0 | M6*25 | 7.0 |
| 4" | 126.0 | 114.4 | 221.6 | 189.6 | 110.8 | 51.0 | 27.0 | 11.0 | M6*25 | 7.0 |