... available 3.Materials: stainless steel,cast iron,pig iron,carbon steel,alloy steel,non-ferrous,grey iron,ductile ... ,plating,HeatTreatment,ect. description materialstainless steel, cast iron, pig iron, carbon steel, alloy steel, non-ferrous, grey iron, ... etc.surface treatmentHeat Treatment, Polishing, Plating, Machining, Anodizing, shot, sand blasting, zinc plated, oxide, galvanised etc.processlost wax ...