 |
| |||
| grooving of tubes | |||
| sizing (в калибровочном стане) | |||
| калибровка труб: 4 phrases in 2 subjects |
| Oil and gas technology | 1 |
| Pipelines | 3 |
|
| |||
| grooving of tubes | |||
| sizing (в калибровочном стане) | |||
| калибровка труб: 4 phrases in 2 subjects |
| Oil and gas technology | 1 |
| Pipelines | 3 |