19 Cement pipes; water-pipe valves, not of metal or plastic; branching pipes, not of metal; water-pipes, not of metal; angle irons, not of metal; drain traps [valves], not of metal or plastic; doors, not of metal; construction materials, not of metal; buildings, not of metal; monuments, not of metal; refractory construction materials, not of metal; drain pipes, not of metal; windows, not of metal; foundry molds, not of metal; tiles, not of metal, for building; binding material for road repair; non-metallic ducts for ventilating and air-conditioning installations; coatings [building materials]; road coating materials, aluminum-plastic composite pipes.