690220 | Refractory bricks, blocks, tiles and similar refractory ceramic construction materials containing more than 50 wt.% ALUMINA (AL2O3), REMNEZEMA (SIO2) or mixtures or compounds of these PROD. |
69022010 | 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: SILICA BRICKS AND SHAPES |
69022020 | 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: HIGH ALUMINA BRICKS AND SHAPES |
69022030 | 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: ALUMINA CARBON BRICKS AND SHAPES |
69022040 | 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: SILICON CARBIDE BRICKS AND SHAPES |
69022050 | 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: MULLITE BRICKS |
69022090 | 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: OTHER |