ball valve: 1.Material:cast iron,bronze,cast steel,CF8,CF8M 2.Size:15-300MM 3,pressure:PN16 ball valve1.Size from DN15 to DN3002.Cast Iron Flange Type Ball Valve3.Working Pressure:PN164.Face to Face:GB,GOST,ANSI5.Flange:GB,GOST,ANSI6.Valve body: cast iron,bronze,cast steel,CF8,CF8M7.Ball: ductile iron/stainless steel8.Seal ring: PTFE/EPDM9.Stem: stainless steel cast iron flange ball valve