690220910019
HS 690220910019 - Other refractory bricks, floor tiles, tiles, and similar refractor ceramics used in construction; alumina, silica, or mixtures >50%, 7%<alumina<44%
Other refractory bricks, floor tiles, tiles, and similar refractor ceramics used in construction; alumina, silica, or mixtures >50%, 7%<alumina<44%
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