1.Item:stainless steel pneumatic diaphragm valve 2.Material:304 ,316L 3.Standard:ISO,DN,SMS,3A 1.Type:stainless steel pneumatic diaphragm valve2.Material :stainless steel (304,304L,316 ... professional manufacturer of stainless steel products: Fittings: tee ,elbow/bend,cross,reducer ,union,ferrule adaptor,caps,clamp ...... Valves:butterfly valve,ball valve,check valve ...... Pumps:centrifugal ...