| |||
| 螺纹断面形状 | |||
| 螺纹牙形 | |||
|
thread form : 15 phrases in 6 subjects |
| Automobiles | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Plastics | 3 |
| Sealing | 1 |
| Technology | 8 |
| |||
| 螺纹断面形状 | |||
| 螺纹牙形 | |||
|
thread form : 15 phrases in 6 subjects |
| Automobiles | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Plastics | 3 |
| Sealing | 1 |
| Technology | 8 |