... Type:male/male butterfly valve,manual valve,sanitary butterfly valve 1.Type: male/male butterfly valve,manual valve,sanitary butterfly valve 2.Material :stainless ... 5.Surface treatment: 0.4μm 7.Application : For use in the petroleum, smelting , foodstuff ,power, ... union,ferrule adaptor,caps,clamp ...... Valves:butterfly valve,ball valve,check valve ...... Pumps:centrifugal pump,self-priming pump ...