81011000

TUNGSTEN POWDERS

81019400

UNWROUGHT TUNGSTEN, INCLUDING BARS AND RODS OBTAINED SIMPLY BY SINTERING

81019600

TUNGSTEN WIRE

81019700

WASTE AND SCRAP OF TUNGSTEN AND ALLOYS

81019910

TUNGSTEN FILAMENT

81019990

ALL OTHR ARTCLS OF TNGSTN & ITS BASE ALLOY