 |
| |||
| automatic butt welding | |||
| автоматическая стыковая сварка: 4 phrases in 4 subjects |
| Electrical engineering | 1 |
| Oil / petroleum | 1 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
|
| |||
| automatic butt welding | |||
| автоматическая стыковая сварка: 4 phrases in 4 subjects |
| Electrical engineering | 1 |
| Oil / petroleum | 1 |
| Oil and gas technology | 1 |
| Oilfields | 1 |