 |
| |||
| rod and drop-pull system | |||
| Canadian drilling; percussion-rod drilling; rod- tool drilling; rod-tool drilling | |||
| rod-tool drill; rod tool drilling | |||
| ударно-штанговое бурение: 11 do fraz, 5 tematyki |
| Górnictwo | 1 |
| Pola naftowe | 1 |
| Ropa / ropa naftowa | 6 |
| Technika i technologia | 2 |
| Wiercenie | 1 |