The Explanatory Note to heading 73.12 applies, mutatis mutandis, to this heading.
Because of its excellent electric conductivity, copper is commonly used in the manufacture of electric wires and cables; these remain in the heading whether or not with a core of steel or other metal, provided the copper predominates by weight (see Note 7 to Section XV).
However, the heading does not cover insulated electric wire and cable (heading 85.44).
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