690220999011
HS 690220999011 - Fire bricks; alumina, silica, or mixtures >50%, alumina <50%
Fire bricks; alumina, silica, or mixtures >50%, alumina <50%
gtipHS 690220999011 - Fire bricks; alumina, silica, or mixtures >50%, alumina <50% | TR2B HSBOT
Fire bricks; alumina, silica, or mixtures >50%, alumina <50%
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