19 Asphalt, pitch, bitumen, tar; building materials for road construction and repair purposes; sand, gravel, mosaics, rubble, sandstone; dry aggregates made of sand, gravel and similar natural materials; aquarium sands; lime; cement; plasters; prepared concrete, prepared mortars, prepared plasters and prepared colored plasters; natural stones, artificial stones; natural marbles, artificial marbles; coatings of natural and artificial stone for interior and exterior surfaces; floor tiles, tiles, pavement stones; panels made up of concrete, pipes made of concrete and connection pieces, panels, walls, beams and columns, roofing elements, prefabricated buildings made up of concrete; portable building elements made up of concrete, poles and posts of concrete, fences, concrete poles for electric power lines, barriers of concrete, benches of concrete; panels, boards, walls, partitions and building elements of plaster; prefabricated building materials of plaster; bricks, roofing tiles, briquettes, tiles for roof ridges; asbestos-containing pipes, water pipes, and parts thereof; traffic signs for roads, non-luminous and non-mechanical, not of metal; monuments and statues of concrete, stone or marble; attachable and removable building materials of wood; prefabricated construction materials of wood, joinery products of wood, wooden doors and windows, wooden door and window frames; venetian blinds, jalousies and shutters, not of metal, wainscoting, not of metal, sections, cabins, huts made up of wooden materials, wooden parquets, plywood; semi-processed building timber, wooden posts, planks (wood for building), wooden beams and girders; attachable and removable structures made up of plastic and synthetic materials, prefabricated construction elements of plastic, joinery materials of plastic, building materials and partitions of plastic, plastic doors and windows, plastic door and window frames; venetian blinds, jalousies and shutters of plastic; synthetic surface coatings in the form of plates, strips or sheets, heat adhesive synthetic coatings; building glass, double glass, glass plates for roofs, glass bricks, glass panels, glass tiles; coverings with pitch for roofs, coatings with pitch; prefabricated swimming pools, not of metal