At Guanyeda, all of the electrical discharge machines are equipped with 3D, CAD /CAM systems and advanced Switzerland EROWA® fixture system, which makes the electrode can be effectively and quickly changed, significantly promoting the advantages of electrical discharge machining, while giving full play to the performance of machine tools. As a result, the electrical discharge machining can realize highest accuracy of+0.002mm in size: 0.13um in fineness (ultra-fine surface) Ra value, <0.03mm in clearance angle, and even a smaller clearance angle of <0.01mm is also possible. The technology provides an excellent solution for the development of molds, such as manufacturing electronic connectors(BTB, FPC, MICROSD card).