... alloy common chromatic, aluminum hard anode oxidation, micro-arc oxidation, anticorrosion chemical oxidation, electro-galvanizing ... precision partsSuitable materialsSteel mold, HSS, tool steels,Carbon steel, stainless steel, aluminum, copper, bronze, bronze, solder alloy ... machine, milling machine, drilling machining, EDM, wire cutting machineSurface treatmentHeat treatment, polishing, PVD/CVD coating ...