| |||
| двухшарошечное коническое долото | |||
| двухшарошечное долото | |||
|
two-cone bit : 6 phrases in 4 subjects |
| Oil / petroleum | 3 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Technology | 1 |
| |||
| двухшарошечное коническое долото | |||
| двухшарошечное долото | |||
|
two-cone bit : 6 phrases in 4 subjects |
| Oil / petroleum | 3 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Technology | 1 |