| |||
| bit configuration | |||
|
форма долота : 8 phrases in 7 subjects |
| Construction | 1 |
| Medical appliances | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 2 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Wood processing | 1 |
| |||
| bit configuration | |||
|
форма долота : 8 phrases in 7 subjects |
| Construction | 1 |
| Medical appliances | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 2 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Wood processing | 1 |