NON-METALLIC BUILDING MATERIALS, NAMELY, NATURAL AND ARTIFICIAL STONE, CLINKER STONES FOR ABOVEGROUND AND UNDERGROUND CONSTRUCTION, LIMESTONE CHIPS, LIMESTONE SAND, GRAVEL, POWDER, AND LUMPS, ROAD CONSTRUCTION MATERIALS, NAMELY, GRAVEL, CHIPS, AND SAND, NATURAL STONE GRAVEL AND CHIPS, PAVING STONES; QUICKLIME, SLAKED LIME, MATERIALS FOR ROUGH-CASTING, IN PARTICULAR, BUILDING SURFACE CEMENTS, CEMENT, AND GYPSUM BASE WITH OR WITHOUT SYNTHETIC ADDITIVES" MORTAR AND CONCRETE; EQUALIZING BULK MATE...