 |
| |||
| self-sharpening bit | |||
| самозатачивающаяся буровая коронка: 3 phrases in 3 subjects |
| Makarov | 1 |
| Oil / petroleum | 1 |
| Oil and gas technology | 1 |
|
| |||
| self-sharpening bit | |||
| самозатачивающаяся буровая коронка: 3 phrases in 3 subjects |
| Makarov | 1 |
| Oil / petroleum | 1 |
| Oil and gas technology | 1 |