... resinsand process! OEM CAST IRON A:Name:pump body of casting B:Material:Cast steel, cast iron, grey iron,ductile iron,carbon steel.stainless ... South America· Asia· Western Europe· Australia 1MaterialDuctile cast iron,Grey cast iron2SandGreen sand,sodium silicate sand 3MachineLathe,CNC,Drilling machine ... ,Painting,Spraying,Galvanization8SizeDN32-DN2000 9StandardJIS,ANSI,DIN,GB,BS 10PressurePN10,PN16