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DIR Return to: 2. MATERIALS TO BE DISCUSSED
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#Post#: 132--------------------------------------------------
MATERIALS TO BE DISCUSSED
DIR By: BigBadWolf
Date: February 4, 2014, 11:05 am
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Chapter 2
Jewelers’ wastes. Dental wastes. Photographers’ wastes. Base
metals present in precious metal wastes. Non-metallic
admixtures. Old electroplating and stripping solutions.
Economics of refining the various kinds of wastes.
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