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馬鞍水流指示器是自動噴水滅火系統的一個組成部件,通常安裝于管網配水干管或配水管的始端,用于顯示火警發生區域,啟...
法蘭式水流指示器,用于自動噴水滅火系統,它可以安裝在主供水管或橫桿水管上,給出某一分區域小區域水流動的電信號,...
12 條記錄