What are Secondary Materials? May 30, 2016 Secondary Materials are materials that have been used, recycled and sold for use in manufacturing. These products allow for less reliance on the search for new raw resources for items such as paper, aluminum and plastic. It is advantageous in the sustainable use of resources so that these materials can be maintained for longer periods. The use of secondary materials is not a new concept. Society has used secondary materials as early as 2000 B.C., where bronze was…
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