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| drill bit selection (Yeldar Azanbayev) | |||
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выбор долото : 3 do fraz, 3 tematyki |
| Pola naftowe | 1 |
| Ropa / ropa naftowa | 1 |
| Tengiz | 1 |
|
| |||
| drill bit selection (Yeldar Azanbayev) | |||
|
выбор долото : 3 do fraz, 3 tematyki |
| Pola naftowe | 1 |
| Ropa / ropa naftowa | 1 |
| Tengiz | 1 |