Дочерняя Компания "Укргаздобыча" Национальной Акционерной Компании "Нафтогаз Украины"
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Priority to UAU201012557UpriorityCriticalpatent/UA59945U/en
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Circulating valve has body located between the upper and the lower adapters, there inlet channel is provided, with radial opening, and circulating channel in which spring-supported shutoff elements are installed.