 |
| |||
| safety relief valve (Yeldar Azanbayev) | |||
| перепускной предохранительный клапан: 9 phrases in 5 subjects |
| Drilling | 1 |
| Military | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Technology | 5 |
|
| |||
| safety relief valve (Yeldar Azanbayev) | |||
| перепускной предохранительный клапан: 9 phrases in 5 subjects |
| Drilling | 1 |
| Military | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Technology | 5 |