| |||
шарошечное долото (см.  wikipedia.org AlexanderKayumov) | |||
| шарошечное коническое долото | |||
|
roller- cone bit : 6 phrases in 3 subjects |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oilfields | 4 |
| |||
| шарошечное долото (см. wikipedia.org AlexanderKayumov) | |||
| шарошечное коническое долото | |||
|
roller- cone bit : 6 phrases in 3 subjects |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oilfields | 4 |