詳細介紹 產(chǎn)品介紹 UL/FM FIG.473U-青銅升桿式閘閥 FIRE PROTECTION GATE VALVE UL Listed FM Approved, Outside screw and yoke, Solid wedge disc, Threaded ends. 零件 PART 材質(zhì) MATERIAL 閥體 BODY CAST BRONZE 閥蓋 BONNET CAST BRONZE 閥桿 STEM BRASS 閥盤 DISC CAST BRONZE 緊迫 PACKING GRAPHITE