Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; containing by weight more than 50% of alumina (Al2o3), of silica (SiO2) or of a mixture or compound of these

690220 Containing by weight more than 50 percent of alumina (Al2O3), of silica (SiO2) or of a mixture or compound of these products:

69022010 Bricks

6902201010 Alumina

6902201020 Other

69022050 Other

6902205010 Alumina

6902205020 Other

69022000 Containing by weight more than 50% of alumina (Al2O3), of silica (SiO2) or of a mixture or compound of these products

6902201000 Containing, by weight, 93 % or more of silica (SiO₂)

6902209900 Other