Section 15 Base metals and articles of base metal 83 Miscellaneous articles of base metal 83 04 Filing cabinets, card-index cabinets, paper trays, paper rests, pen trays, office-sta 83 04 00 Filing cabinets, card-index cabinets... or desk equipment of base metal Commodity Code Description 83 04 00 00 Filing cabinets, card-index cabinets... or desk equipment of base metal 83 04 00 10 Filing cabinets and card-index cabinets 83 04 00 91 Other : Of aluminium 83 04 00 92 Other : Of nickel 83 04 00 93 Of copper or of lead 83 04 00 99 Other