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690220Chapter 69

Containing, by weight, more than 50 % of alumina (Al2O3), of silica (SiO2) or of a mixture or compound of these products

Description

Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods, other than those of siliceous fossil meals or similar siliceous earths : Containing, by weight, more than 50 % of alumina (Al2O3), of silica (SiO2) or of a mixture or compound of these products

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