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交投最活跃的7月期铜合约收跌4美分，至每磅3.0650美元。
尽管中国制造业采购经理人指数向好，铜价仍未能上涨。
周四公布的数据显示，中国5月官方制造业PMI为51.9%,连续22个月站稳荣枯线上，高于上月0.5个百分点，制造业总体扩张有所加快。
BMO Capital Markets商品研究总经理Colin Hamilton指出。尽管数据表明活跃度继续上升，“但人们对于房地产市场的担忧仍存，进而打压铜价。”
