304/316 stainless steel Thread Check Valve 1.Investment casting technology 2.CNC lathe ... .SS304,SS316,CF8/CF8M, 304/316 stainless steel Thread Check ValveSize: 1/2"-12"2) Pressure: 150-300lbs3) ... series: 1pc,2pc,3pc ball valve,flanged end ball valve,gate valve,check valve,globe valve,Y-strainer,sanitary valve etc.3.Quick coupling: type ... mutual benefit . 304/316 stainless steel Thread Check Valve