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Основы технологии 20170710

2017-07-10View Original

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Для предотвращения обратного тока воды в трубопроводе необходимо установить на нем клапан A. А. Обратный клапан Б. Клапан с регулировкой потока В. Бабочковый клапан Г. Заглушковый клапан
Reply #22017-07-10
Для предотвращения обратного тока воды в трубопроводе необходимо установить на нем клапан (а)

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