NON-METALLIC BUILDING MATERIALS AND UNDERGROUND STRUCTURES, ESPECIALLY PROFILES, RODS, BARS, STRIPS, PANELS, PLATES AND COVERINGS, ENTIRELY OR PARTLY COMPOSED OF NATURAL FIBERS OR SIMILAR MATERIALS AND/OR PRODUCED USING ORGANIC OR INORGANIC BINDING AGENTS, NATURAL AND SYNTHETIC STONES, CEMENT, MORTAR, PLASTER AND GRAVEL, TRANSPORTABLE MODULAR HOUSES AND ROOMS FOR HOUSE, TRANSPORTABLE ROOMS IN THE NATURE OF SOUNDPROOF CHAMBERS, SPRAYING CHAMBERS, AND THE LIKE; CONCRETE HOLLOW TILE SLAB, PREFAB...