 |
| |||
| трапециевидная резьба колонны (Yeldar Azanbayev) | |||
| трапецеидальная резьба обсадных труб (Yeldar Azanbayev) | |||
| casing buttress thread: 5 phrases in 5 subjects |
| General | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Pipelines | 1 |
|
| |||
| трапециевидная резьба колонны (Yeldar Azanbayev) | |||
| трапецеидальная резьба обсадных труб (Yeldar Azanbayev) | |||
| casing buttress thread: 5 phrases in 5 subjects |
| General | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Pipelines | 1 |