The world’s proven copper reserves of over 600 million tons, the largest reserves in the country is Chile, accounting for about one-third of the world’s reserves. China there are many well-known copper Dexing, Tongling, Anhui, Shanxi Zhongtiaoshan, Gansu Baiyin, Dongchuan, Yunnan, Tibet Yulong, etc.. , The electrical conductivity of copper is second only to silver in the metal kingdom.

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