用途Purpose本蝶閥適用于食品.醫藥.石油化工.電廠.鋼廠.工業環保水處理及高層建筑.供排水管道上作調節流量和截斷流體、優良裝置。Thiskingofbuttervalveissuitableforfoodstuff,Pharmacy,petroleumchemicalindustry,