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pig injection and receiver valve system (для чистки трубопровода) | |||
pig injector and receiver valve system (для чистки трубопровода) | |||
pig injector and receiver valve system |
шлюзовой затвор запуска и приёма скребков : 3 phrases in 3 subjects |
Oil / petroleum | 1 |
Oil and gas | 1 |
Oilfields | 1 |