It may be composed of mixed copper (electrolytic ETP/OFHC, phosphorus deoxidised DHP/DLP, fire-refined FRTP) in the form of wires, ropes, minute shearings, clean pottery and miscellaneous trimmings with limited metallic impurities (tin plating, nickel plating and lead plating) as well as burnt material (formerly electrical cables), but not made brittle. These materials, to belong to this category, must have a nominal "as is" copper content of at least 96% and a minimum of 94% |
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