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Class [19]
Non-Metallic Building Material Products

Building materials; natural and artificial stones; tiles; cement, lime, mortar, plaster of Paris, gravel; pipes of ceramic materials, of cement or of sandstone; chimneys, components for the construction of channels for the transport of combustion and exhaust gases and parts and fittings therefor; expansion joint sleeves of ceramics; fireplaces; cowls and caps for flues; prefabricated chimneys, shaped parts for chimneys; inserts for fireplaces; prefabricated ventilation shafts of concrete; scaffolding, not of metal, all for use in the construction or reconstruction of chimneys; all included in Class 19.