Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods, other than those of siliceous earths

CPC v2.1 class (Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods, other than those of siliceous earths) within 'Refractory products and structural non-refractory clay products'. UN Central Product Classification grouping of related products at this level.