... 200x200mm 5)Ten-year OEM brass investment casting carbon brush box MaterialsCopper alloy, bronze, brass, other materials ... lathe machine, , milling machine, drilling machine, EDM, wire-cutting machine,Service projectTo provide production design, production and ... machine,Universal radial milling machine,CNC milling machine Wire cuttingFinish:anodize,polishing,sand blaster,heat treatmentInspection ...