... , nc machining precision partsSuitable materialsSteel mold, HSS, tool steels,Carbon steel, stainless steel, aluminum, copper, bronze, bronze, solder alloy copper and iron, engineering ... machine, milling machine, drilling machining, EDM, wire cutting machineSurface treatmentHeat treatment, polishing, PVD/CVD coating, galvanized, electroplating, spraying, chrome or nigrescence processingTesting ...