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      • 300X緩閉止回閥

        300X緩閉止回閥

        能夠調控啟閉速度的止回閥,在水泵啟動或停止運行時,可配合現場調節至Z佳開啟或關閉速度??捎糜诟邔咏ㄖ?,減小水錘現象,以達到安全及安靜的啟閉效果

      中文字幕午夜福利_蜜芽国产成人精品区_中文字幕一区二_久久久久无码国产精品一区
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