Section 15 Base metals and articles of base metal 81 Other base metals; cements; articles thereof 81 05 Cobalt mattes and other intermediate products of cobalt metallurgy; cobalt and articl 81 05 20 Unwrought cobalt 81 05 20 10 Unwrought cobalt Commodity Code Description 81 05 20 10 00 Unwrought cobalt
