| http://www.w3.org/ns/prov#value | - While the copper may be pure in the sense of measuring gas impurities in the copper in comparison to standard copper refining techniques, Oxygen Free Copper (OFC) has undesirable effects that lead many to use more expensive materials such as silver for their conductive strands.As developed for A/V cable use, the OCC process utilizes a heated mold for casting and extruding, with cooling taking pl
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