BUILDING MATERIALS-NAMELY, PORTLAND CEMENT, GYPSUM AND GYPSEOUS ROCK, LIME, WINDOW GLASS, POLISHED AND PATTERNED GLASS, RUBEROID, ROOFING GLASSOID, SLATE, ASBESTOS-CEMENT PIPES, FACING TILES AND WALL AND FLOOR TILES, MARBLE GRANITE, GLASS BLOCKS, BRICKS AND MARBLE CRUMBS