China, Concentric, Center line, Ductile Iron, Butterfly Valve, Rubber Seated, Wafer, Lugged, Flanged, Manufacture, Factory, Price, Carbon Steel, Stainless Steel, A216 WCB, WC6, WC9, A352 LCB, A351 CF8, CF8M, CF3 , CF3M, A995 4A, A995 5A၊ A995 6A။ ဖိအားအတန်း 150LB မှ 2500LB ။