北证50日内跌幅达1.62%，成分股中，三协电机跌6.57%，华岭股份跌4.44%，蘅东光跌4.02%，鼎智科技跌3.8

智通财经10-23

北证50日内跌幅达1.62%，成分股中，三协电机跌6.57%，华岭股份跌4.44%，蘅东光跌4.02%，鼎智科技跌3.89%。

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