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example – a gold wedding ring containing fi ve grams of g example – a gold wedding ring containing fi ve grams of g

example – a gold wedding ring containing fi ve grams of g - PDF document

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Uploaded On 2015-07-28

example – a gold wedding ring containing fi ve grams of g - PPT Presentation

E tonnes of waste8 fs another4 the extraction of the various metals contained in a personal computer produces a total of B8I tonnes of waste8 on many places the remaining metals are recovered and re ID: 95942

tonnes waste8

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