 |
| |||
| primary valve (igisheva) | |||
| всасывающая задвижка: 5 phrases in 5 subjects |
| Construction | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
|
| |||
| primary valve (igisheva) | |||
| всасывающая задвижка: 5 phrases in 5 subjects |
| Construction | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Oilfields | 1 |