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Profitability: ROE is 23.89%, gross profit margin is 27.87%, and net interest rate is 16.44%.Industrial Segmentation: Chassis and Engine SystemMain products: metal plastic polymer self-lubricating rolled bearings are the main source of income, accounting for 35.03% of the income and 49.33% of the gross profit margin.

Profitability: ROE is 25.11%, gross profit margin is 29.52% and net interest rate is 14.46%.Profitability: ROE is 11.15%, gross profit margin is 37.02%, and net interest rate is 14.26%.Highlights of the company: Best's main products include high-precision ball/roller screw pairs, high-precision rolling guide rail pairs and so on, which are used in industrial machine tools, humanoid robots and other fields.

Top ten enterprises with profitability of core components of humanoid robots;Profitability: ROE is 16.77%, gross profit margin is 84.77%, and net interest rate is 51.10%.Highlights of the company: Changsheng bearing products have applications in robot joints and reducers.