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品种 结算价  开盘    最高   最低    收盘   涨跌
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   6831.5  6860    6819   6860    6830   -156
   2119    2146    2140   2168    2168   -22
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     成交量    持仓     增减    库存     增减
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铜                             272625   -2950
铝                             1196600  +5050
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