Section XV — Base metals and articles of base metal
National subdivision
74091
Of refined copper:
Common commodities
Pure copper electrical conductors sheetsElectrolytic refined copper plates for heat exchangersRefined copper strips for brazing applicationsHigh-purity copper sheets for electronics industryThick copper sheets for architectural claddingRefined copper plate for chemical processing equipmentPure copper strip for cooking utensils manufacturingElectrolytic copper sheet for battery productionHeat-treated refined copper plates for aerospace industryThick copper sheets for heat exchangers in power plants