短語詞組短語way sealing butterfly valve 雙向密封蝶閥Sealing water valve 密封水閥sealing gate valve 密封閘閥soft sealing gate valve 軟密封閘閥Electronic sealing butterfly valve 電子式電動軟密封蝶閥metal hard sealing ball valve 金屬硬密封球閥Electric metal sealing butterfly valve 電動金屬密封蝶閥electrical metal sealing butterfly valve 電動金屬密封蝶閥four eccentric sealing butterfly valve 四維偏心碟閥Self -sealing plug valve 自閉式旋塞閥 返回 seal valve