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1. Lei Sai Intelligence2. Zhongda Lide

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: the process of planetary roller screw, the core component of the linear actuator of humanoid robot, has been continuously optimized, and the layout of batch production process has been continuously improved.8. Zhaowei Electromechanical

2. Zhongda Lide7. Double-ring drive4. Changsheng Bearing