
| 公稱外徑/mm | 公稱壁厚/mm | ||||
| 2 | 2.5 | 3 | 3.5 | 4 | |
| 理論質量/(kg/mm) | |||||
| 19 | 0.838 | 1.02 |  |  |  | 
| 25 | 1.13 | 1.39 | 1.63 |  |  | 
| 32 |  | 1.82 | 2.15 | 2.46 |  | 
| 38 |  |  | 2.59 | 2.98 | 3.35 | 
| 45 |  |  | 3.11 | 3.58 | 4.04 | 
| 57 |  |  |  | 4.62 | 5.23 |