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		2000—2015年中国铜废碎料贸易及效益风险分析
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			Benefits and risks of China’s copper waste and scrap trade during 2000-2015
			 
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		 图1. 中国1950—2015年精炼铜产量的变化(a)及2000—2015年再生铜冶炼原料的来源(b)  | 
	
Figure 1. Change of refined copper production,1950-2015 (a) and sources of reclaimed copper smelting raw materials, 2000-2015 (b) in China  | 
	
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