 |
| |||
| hydraulic valve; regulating valve | |||
| pipe stopper | |||
| flap; flapper | |||
| flap (flapper) | |||
| pipe valve; injector (для запуска скребков); pipe seal | |||
| затвор трубопровода: 23 phrases in 10 subjects |
| Aluminium industry | 1 |
| Cement | 1 |
| Construction | 4 |
| Hydroelectric power stations | 2 |
| Makarov | 2 |
| Oil / petroleum | 2 |
| Oil and gas | 1 |
| Oil and gas technology | 3 |
| Sakhalin | 1 |
| Technology | 6 |