Stainless Steel Ball Valve, Butterfly Valve, Fitting manufacturer / supplier in China, offering 2PC Wcb Hexagonal Carbon Steel Casting Industrial Manual Ball Valve, 1/8" Mf Mini Ball Valve 1/2 Stainless Steel NPT Threaded Mini Ball Valve, Sanitary Stainless Steel SS316L SS304 Pneumatic Butterfly Valve and so on.