... Steel600tGrey Iron30tSpheroidal Graphite Iron20tNon ferrous2.5tItemDescriptionMaterialTechnical Process1Ductile iron castings ASTM A 536-Gr.60-40-18, 65-45 ... foam castShell-core castElectric-furnace smelting2Grey iron castings ASTM A48-No.20,25,30,35,40,45ASTM A126- ... sand mouldingLost foam castShell-core castElectric-furnace smelting3Carbon steel castings ASTM A216-Cr. WCB. Cr. WCA, Gr. WCCASTM- ...