[求购] 青铜闸阀

[求购] 青铜闸阀 BS 5154 PN 20. Non-Rising Stem. Threadeds Ends. Solid Wedge Disc. Teflon Packing. Threaf According with BS 21. 材料：Bronze LG2. 规格：　ＢＳ　１４００．