USES and features DQCX - 3 type piston ring inside and outside the circle at the same time copying milling combination machine tools (touch screen) .The machine for piston ring based processing of advanced equipment, can complete the piston ring continuously inside and outside the circle of copying turning and milling at the same time open two key process of machining, suitable for all kinds of batches of small and medium-sized specification piston ring production situation. Machine is mainly composed of lathe, milling machine, auxiliary equipment, hydraulic, electrical appliances of five parts. The product inside and outside the transplant Germany gertz and imitation technology is improved and perfected. Profiling tool slide is part of a new automatic device, replacing varieties more quick, convenient, welcome by the masses of the operator.