application : . Thermometer bellows coupling bellows fuel level gauge valve copper bellows no sealing high pressure bellows vacuum bellows sensor bellows vacuum switch
types of joints : 1, both ends are external joints WW type
2, both ends are internal joints NN type
3, one end is external joints , the other with bottom WDtype
4, both ends are side cut from the trough QdQd type
| D(mm) | d(mm) | t(mm) | Wave No n | Wall Thickness(mm) |
| 20 | 12.5 | 2.1 | 12 | 0.10 0.12 |
| 22 | 14 | 2.2 | 14 | 0.10 0.12 |
| 25 | 16.5 | 2.3 | 12 | 0.10 0.12 |
| 28 | 18 | 2.6 | 12 | 0.10 0.12 |
| 31 | 19.5 | 2.8 | 12 | 0.12 |
| 32 | 21.5 | 3 | 12 | 0.10 0.12 |
| 38 | 25.5 | 3.2 | 12 | 0.12 0.14 |
| 40 | 27.5 | 3.4 | 12 | 0.12 0.14 |
| 45 | 31 | 3.6 | 12 | 0.12 0.14 |
| 51 | 35.6 | 3.6 | 16 | 0.12 0.14 |
| 55 | 37 | 4.2 | 12 | 0.14 0.16 |
| 60 | 41 | 4.5 | 15 | 0.16 0.18 |
| 79 | 55 | 5.4 | 13 | 0.16 0.18 |
| 100 | 75 | 6 | 9 | 0.16 0.20 |
