 |
| |||
| casing head | |||
| case head; drive cap (для забивных труб) | |||
| driving cap; drive collar; drive head (для обсадных труб); drive-pipe head (для обсадных труб); jar head; driving head | |||
| забивная головка: 9 phrases in 5 subjects |
| Drilling | 2 |
| Geology | 1 |
| Mining | 2 |
| Oil / petroleum | 3 |
| Oil and gas | 1 |