| |||
| график использования буровых растворов | |||
|
mud changeover program : 3 phrases in 2 subjects |
| Oil / petroleum | 2 |
| Technology | 1 |
| |||
| график использования буровых растворов | |||
|
mud changeover program : 3 phrases in 2 subjects |
| Oil / petroleum | 2 |
| Technology | 1 |