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In order to keep up with market leaders in the development of new technology and the increasingly strict requirements of products ‘made in China,’ we have proprietary equipment imported from Japan. Machinery has incorporated the use of multi-axis CNC machine tools and grinding machines from Switzerland. For bar processing, the main shaft, auxiliary shaft, and butt joints have tolerances of 5μm. The machine has a moving z-axis and uses torque motor technology for shaft barrel segmentation. The process accuracy reaches 2μm.