Copper, the essential metal.
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Here is an interesting article on copper. Copper is 100% recyclable and there is no difference between recycled copper and new copper.
http://www.visualcapitalist.com/portfol ... tial-metal (PART ONE)
http://www.visualcapitalist.com/portfol ... tal-part-2 (PART TWO)
http://www.visualcapitalist.com/portfol ... tial-metal (PART ONE)
http://www.visualcapitalist.com/portfol ... tal-part-2 (PART TWO)