| |||
| долото для вращательного бурения | |||
|
rotation drilling bit : 4 phrases in 3 subjects |
| Oil / petroleum | 1 |
| Oil and gas technology | 2 |
| Oilfields | 1 |
| |||
| долото для вращательного бурения | |||
|
rotation drilling bit : 4 phrases in 3 subjects |
| Oil / petroleum | 1 |
| Oil and gas technology | 2 |
| Oilfields | 1 |