Section 15 BASE METALS AND ARTICLES OF BASE METAL 81 Other base metals; cermets; articles thereof 81 01 Tungsten (wolfram) and articles thereof, including waste and scrap. 81 01 10 81 01 10 00 Commodity Code Description 81 01 10 00 00 - Powders 81 01 94 00 00 -- Unwrought tungsten, including bars and rods obtained simply by sintering 81 01 96 00 00 -- Wire 81 01 97 00 00 -- Waste and scrap 81 01 99 00 00 -- Other