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2. Zhongda Lide8. Zhaowei Electromechanical5. Best

Highlights of the company: the main business is self-lubricating bearings, and the ball screw products of the company can be applied to the action control parts of humanoid robots.Highlights of the company: RV reducer and harmonic reducer can be applied to six-axis robots and cooperative robots, mainly used in the joints of industrial robots.7. Double-ring drive

Highlights of the company: the production line of lead screw for humanoid robot has been built, and the equipment of the corresponding process is relatively complete, so that the whole process can be independently produced by the company, and the single-process automation scheme can be realized.7. Double-ring drive10. Beite Technology