... sand casting Detailed Product DescriptionMaterial: aluminum , carbon steel, gray iron, ductile iron, etc· resin coated ... MaterialCast Iron, Grey Iron, Ductile Iron,Carbon Steel, Stainless steel, Alloy steel,Aluminum, Aluminum alloy etc.StandardISO, GB, ASTM, DIN, JISEquipmentmelting ... .10M,Z12C13Shell-core cast Electric –furnace smelting5Alloy steel castingsDIN-GS-40Mn5, GS-20Mn5, GS-37MnSi5Soluble ...