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品种 结算价  开盘    最高   最低    收盘   涨跌
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   6728.5  6775    6758   6777    6777   +40
   2077    2113    2094.5 2113    2103   +1
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     成交量    持仓     增减    库存     增减
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铜                             247700   -3850
铝                             1157800  -3675
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