Section 15 Base metals and articles of base metal 81 Other base metals; cements; articles thereof 81 12 Beryllium, chromium, germanium, vanadium... and articles thereof 81 12 51 Thallium : Unwrought; powders 81 12 51 00 Thallium : Unwrought; powders Commodity Code Description 81 12 51 00 00 Thallium : Unwrought; powders
