Section 15 Base metals and articles of base metal 81 Other base metals; cermets; articles thereof. 81 05 Cobalt mattes and other intermediate products of cobalt metallurgy; cobalt and articles thereof, including waste and scrap 81 05 20 Cobalt mattes and other intermediate products of cobalt metallurgy; unwrought cobalt; wa Commodity Code Description 81 05 20 00 Cobalt mattes and other intermediate products of cobalt metallurgy; unwrought cobalt; wa
