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.
精炼铜库存正在流入manbetx3.0 ，加上一系列铜矿的关闭必将在接下来几年收紧市场，铜价正开始从六年低点回升。
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