... . OME casting supplier CNC machining part Name:machining partMaterial:ductile iron,grey iron, ... Gr370-17,Gr420-12,etcGreen-sand mouldingResin-sand mouldingLost foam castShell-core castElectric-furnace smeltingGrey ironcastingsASTM A48-No.20, ... ,220,etcNF FGL150,FGL200,FGL250,etcGreen-sand mouldingResin-sand mouldingLost foam castShell-core castElectric-furnace smelting2.Product description : • 25-year ...