 |
| |||
| square hub (MichaelBurov); square kelly (MichaelBurov) | |||
| kelly bar; square joint; grief stem (для роторного бурения) | |||
| kelly joint; kelly; grief stem | |||
| ведущая бурильная труба: 65 phrases in 6 subjects |
| Drilling | 3 |
| Karachaganak | 1 |
| Oil / petroleum | 46 |
| Oil and gas | 5 |
| Oilfields | 1 |
| Technology | 9 |