 |
| |||
| колонна обсадных труб | |||
|
column of casing : 5 phrases in 3 subjects |
| Construction | 2 |
| Oil and gas technology | 1 |
| Technology | 2 |
|
| |||
| колонна обсадных труб | |||
|
column of casing : 5 phrases in 3 subjects |
| Construction | 2 |
| Oil and gas technology | 1 |
| Technology | 2 |