 |
| |||
| hard-alloy insert drilling bit | |||
| |||
| insert-type bit | |||
| долото с твердосплавными зубьями: 11 phrases in 4 subjects |
| Drilling | 1 |
| Oil / petroleum | 5 |
| Oil and gas | 3 |
| Oilfields | 2 |
|
| |||
| hard-alloy insert drilling bit | |||
| |||
| insert-type bit | |||
| долото с твердосплавными зубьями: 11 phrases in 4 subjects |
| Drilling | 1 |
| Oil / petroleum | 5 |
| Oil and gas | 3 |
| Oilfields | 2 |