 |
| |||
| left hand thread; right hand thread | |||
| vis à gauche: 13 phrases in 4 subjects |
| Materials science | 3 |
| Mechanic engineering | 3 |
| Technology | 1 |
| Transport | 6 |
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