Materials, not of metal, for building and construction; building materials of concrete and plastic; water storage tanks of concrete; tanks of masonry; rainwater rigid pipes, not of metal, for building; non-metallic water pipes (other than parts of sanitary installations); materials, not of metal, for building and construction; building materials, not of metal; building materials of concrete and plastic; rigid pipes, not of metal, for building; non-metallic water pipes (other than parts of sanitary installations); concrete pipes, vaults, panels, walls and structures.