| 通径 | 凸筋 | 平筋 | |||||
| Convoluted Exterior | Smooth Exterior | ||||||
| Size | 内径I.D.（mm) | 外径O.D.(mm) | 内径I.D.（mm) | 外径O.D.(mm) | |||
| 16 | 12 | 16.4 | 12.55 | 17.65 | |||
| 20 | 16 | 20.7 | 16.05 | 21.97 | |||
| 25 | 22 | 27.7 | 21.08 | 26.29 | |||
| 32 | 28 | 33.5 | 26.82 | 32.94 | |||
| 40 | 35 | 41.0 | 35.56 | 41.65 | |||
| 50 | 40 | 46.4 | 40.38 | 47.67 | |||
| 63 | 50 | 57.2 | 51.69 | 59.74 | |||
