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品种 结算价  开盘    最高    最低    收盘   涨跌
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   6808    6839    6971.5  6777    6962   +129
   2078.5  2110    2134    2093    2120   +14
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     成交量    持仓     增减    库存     增减
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铜                             311125   -3750
铝                             1311725  -3775
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