... 2),Material:WCB,304,316 stainless steel pneumatic ball valve,pneumatic ball valve,stainless steel ball valve 1),Size:1/2"-------12"2),Material ... :WCB,304,316(CF8,CF8M)3),Pressure:PN16-64/150 ... :flange7),Operation:pneumatic(220V)stainless steel pneumatic ball valve,pneumatic ball valve,stainless steel ball valve