cast iron material,flanges drillings are according to international standard,and as per your requirement is available Size:DN50-DN1200Body:Cast Iron, Ductile IronDisc:Cast Iron,Ductile,Stainless SteelSeat:PTFE,BNR,EPDMStem:Stainless Steel 304/316/416Hand Lever/Gear:Cast Iron or Ductile IronWoking Pressure:PN10,PN16,PN25Flange drilling standard: BS4504 ,ANSI B16.5, DIN2501,ISOSurface: Electric ...