This link has been bookmarked by 1 people . It was first bookmarked on 05 Nov 2009, by Colin Bennett.
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Colin Bennett"Recently, carbon-free copper smelting technology, a technology with full independent intellectual property rights, has passed expert examination organized by China Nonferrous Metals Industry Association (CNIA) in Dongying, Shandong province. It is the first time zero-carbon emissions in the copper melting process has been realized and also opens a new gate for low-carbon development of China's nonferrous metals industry."
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