| Classification of Products ver. 2002 (CZ-CPA) - level 5 - Class | 
                    2626 | 
                    Refractory ceramic goods | 
                  
                
                  
                    | Classification of Products ver. 2002 (CZ-CPA) - level 7 - Sub-category | 
                    262611 | 
                    Bricks, blocks, tiles and other ceramic goods of siliceous fossil meals or earths | 
                  
                
                  
                    | Classification of Products ver. 2002 (CZ-CPA) - level 7 - Sub-category | 
                    262612 | 
                    Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods, other than of siliceous fossil meals or earths | 
                  
                
                  
                    | Classification of Products ver. 2002 (CZ-CPA) - level 7 - Sub-category | 
                    262613 | 
                    Refractory cements, mortars, concretes and similar compositions n.e.c. | 
                  
                
                  
                    | Classification of Products ver. 2002 (CZ-CPA) - level 7 - Sub-category | 
                    262614 | 
                    Unfired refractory products and other refractory ceramic goods |