 |
| |||
| drill-pipe testing (MichaelBurov); DP testing (MichaelBurov) | |||
| drill pipe testing (MichaelBurov); drillpipe testing (MichaelBurov) | |||
| испытания бурильных труб: 15 Phrasen in 5 Thematiken |
| Bohren | 1 |
| Erdöl | 2 |
| Erdöl und Erdgas | 10 |
| Erdöl- und Erdgastechnik | 1 |
| Geologie | 1 |