... technician team 3)strict quality cont Grey iron casting pump body1.Material: The part ... Moulding Process: green sand casting,resin bonded casting, , compression casting, investment casting(lost wax casting), die casting, pressing & forging etc ... Grey iron,ductile iron,malleable iron,stainless steel, carbon steel,aluminium,brass etc.standardDIN, ASTM, BS, JIS etc.processsand casting,resin bonded casting ...