... surface treatment 5.make as per drawing Item NO. types of motor couplingsMaterialsIron, aluminum, steel, copper, plastic, carbon ... grinding machine, automatic lathe machine, conventional lathe machine, milling machine, drilling machine, EDM, wire-cutting machine, CNC ... Instrument1 Sets* Partner 's Equipments * CNC Milling Machine10 SetsCNC Lathe machine5 SetsGeneral Lathe machine8 SetsTapping ...