QK series of CNC screw thread tube process machines are high efficiency and easy-to-operate machines with principal axis diameter of 280-505mm and CNC system from Siemens company. The turning screw thread achieved American Petroleum Institute (API) standard. Their main applications are in the repair and process of screw thread tube for petroleum-processing, geologicdrilling pipe, bushing and tube connector. They are also idea process machines for shaft and petrol cylinder.

　　　CK series of CNC Milling Machines, used in rolling and drilling, can be operated both automatically and manually.
They are suitable for surface and end process for steel, iron and non-ferrous metals.