 |
| |||
| offset cone drilling bit | |||
| долото со смещёнными осями шарошек: 5 phrases in 4 subjects |
| Oil / petroleum | 2 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
|
| |||
| offset cone drilling bit | |||
| долото со смещёнными осями шарошек: 5 phrases in 4 subjects |
| Oil / petroleum | 2 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Oilfields | 1 |