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| drill bit selection (Yeldar Azanbayev) | |||
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выбор долото : 3 phrases in 3 subjects |
| Oil / petroleum | 1 |
| Oilfields | 1 |
| Tengiz | 1 |
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| |||
| drill bit selection (Yeldar Azanbayev) | |||
|
выбор долото : 3 phrases in 3 subjects |
| Oil / petroleum | 1 |
| Oilfields | 1 |
| Tengiz | 1 |