Section 15 BASE METALS AND ARTICLES OF BASE METAL 81 OTHER BASE METALS; CERMETS; ARTICLES THEREOF 81 09 ZIRCONIUM AND ARTICLES THEREOF, INCLUDING WASTE AND SCRAP. 81 09 20 UNWROUGHT ZIRCONIUM; POWDERS Commodity Code Description 81 09 20 00 UNWROUGHT ZIRCONIUM; POWDERS