 |
| |||
| 管子加厚端 | |||
| pipe upset: 22 phrases in 4 subjects |
| Drilling | 3 |
| Metallurgy | 4 |
| Oil / petroleum | 8 |
| Technology | 7 |
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