 |
| |||
| пневматический забойный двигатель | |||
|
air-operated downhole drill : 3 phrases in 2 subjects |
| Oil / petroleum | 2 |
| Oilfields | 1 |
|
| |||
| пневматический забойный двигатель | |||
|
air-operated downhole drill : 3 phrases in 2 subjects |
| Oil / petroleum | 2 |
| Oilfields | 1 |