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anhui tongdu copper industry co., ltd. is a comprehensive copper production enterprise integrating procurement, selection, smelting, processing and trade. ?????? the company is located in the yangtze river economic belt. its headquarters is located in tongling, a city on the south bank of the yangtze river in anhui province, known as the "ancient bronze capital of china". its main production bases are located in cities along the yangtze river such as tongling, wuhu, and zhangjiagang. ??the company insists on technological innovation and management innovation, and the product quality has been steadily improved. the main and auxiliary products of the "copper guan" brand and "copper ding" brand series have achieved good brand effects. ???? dongguan chang'an copper copper industry operation department is anhui copper copper co., ltd.