manufacturer of ball valve with experiences of than 20 years these ball valves are used in industrial virous material stainless steel ball valve 1.Material:WCB,CF8,CF8M,1.43012.size:1/4"to 4 inch3.pressure:1000psistainless steel ball valve.Material:WCB,ASTM A351,CF8,CF8M,CF3,CF3M,304,316.pressure:1000psi,wogMediom:water,oil,steam.