 |
| |||
| 套管螺纹 | |||
|
casing thread : 33 phrases in 4 subjects |
| Mechanics | 1 |
| Metallurgy | 4 |
| Oil / petroleum | 10 |
| Technology | 18 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips