The recovery in copper prices from six-year lows has been driven by stocks of refined metal flowing into China and a string of mine closures that promise to tighten the market over the next couple of years.
精煉銅庫存正在流入中國，加上一系列銅礦的關閉必將在接下來幾年收緊市場，銅價正開始從六年低點回升。
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