... casting , investment casting, sand casting.The investment casting process offers many benefits including cost savings, design freedom, close ... no draft requirements in the investment casting process.5.Consistency: The process gives a reliable and consistent product order ... Attempered Ductile IronSteelto 2,000 lbs.Carbon, Low Alloy, Corrosion-Resistant, Heat-Resistant, Manganese Steels and Other Steel ...