 |
| |||
| pig launching valve (MichaelBurov) | |||
| pig scraper injector valve (на трубопроводе); pig scraper launching valve (на трубопроводе) | |||
| scraper-launching valve | |||
| pig scraper launching valve (для чистки трубопровода); scraper injector valve (на трубопроводе) | |||
| узел запуска скребков: 10 phrases in 4 subjects |
| Drilling | 1 |
| Karachaganak | 2 |
| Makarov | 2 |
| Oil and gas | 5 |