7410: Copper foil, thickness (except any backing) < 0.15mm

741011: Foil of refined copper, not backed, t < 0.15mm 741012: Foil, copper alloy, not backed, t < 0.15mm 741021: Foil of refined copper, backed, t < 0.15mm 741022: Foil, copper alloy, backed, t < 0.15mm 7410: Copper foil, thickness (except any backing) < 0.15mm