 |
| |||
| plain-end liner (Yeldar Azanbayev); blank nonperforated string (Yeldar Azanbayev) | |||
| неперфорированная колонна: 6 phrases in 4 subjects |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 2 |
| Technology | 2 |
|
| |||
| plain-end liner (Yeldar Azanbayev); blank nonperforated string (Yeldar Azanbayev) | |||
| неперфорированная колонна: 6 phrases in 4 subjects |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 2 |
| Technology | 2 |