Sand, gravel, crushed natural stone, asphalt, bitumen, cement, gypsum, plaster, concrete and marble blocks for construction; building materials as finished products made of concrete, gypsum, clay, potters' clay, stone, marble, wood, plastics and synthetic materials for building, construction and road construction purposes; non-metallic transportable buildings; non-metallic building materials, namely, surface coatings, tiles, boards, panels, pipes, scaffoldings, gypsum, terracotta, reinforcing...