 |
| |||
| добавка к буровому раствору (AD Alexander Demidov) | |||
| mud chemical: 9 phrases in 4 subjects |
| Oil / petroleum | 3 |
| Oil and gas | 3 |
| Oil and gas technology | 1 |
| Oilfields | 2 |
|
| |||
| добавка к буровому раствору (AD Alexander Demidov) | |||
| mud chemical: 9 phrases in 4 subjects |
| Oil / petroleum | 3 |
| Oil and gas | 3 |
| Oil and gas technology | 1 |
| Oilfields | 2 |