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1. Lei Sai Intelligence2. Zhongda Lide4. Changsheng Bearing

4. Changsheng Bearing6. Siling shares4. Changsheng Bearing

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.2. Zhongda LideTop ten enterprises with the growth ability of core components of humanoid robots: