Sand, gravel, crushed stone, asphalt, bitumen, cement, gypsum for use as building materials, plaster, concrete, marble blocks for construction; building materials as finished products made of concrete, gypsum, clay in the nature of non-metal slabs of clay, potters' clay, stone, marble, wood, plastic in the nature of tiles, synthetic materials in the nature of flooring materials, for building, construction, road construction purposes; non-metallic transportable buildings, non-metallic building...