Building materials as finished products, namely, non-metal slabs, paving stones, paving tiles, natural stone slabs and tiles, made of concrete, gypsum, clay, potters' clay, natural or artificial stone, wood, plastics and synthetic materials for building, construction, road construction purposes; Prefabricated non-metallic buildings; non-metallic building materials, namely, soffits; non-metallic transportable buildings; poles not of metal for power lines; crash barriers not of metal; doors and...