... Material: Carbon steel, alloy steel, stainless steel, aluminum, brass rubber etc.3) Equipment: CNC Machining Center, wire EDM, CNC ... ,solw wire-cutting, auto lathe, drilling, surface grinder,polish machine etc.4) Machining: CNC Machining, CNC turning, milling, CNC ... , and CNC boring, surface grinding.5) Art of surface: shot blasting,zinc/nickel/chrome plating, hot galvanized , dichromate plating.6) ...