goods made of plastics (semi-worked) for the building industry; namely, plastic sheets or films (other than for wrapping) for use in the building industry; packing, stopping and insulating materials for the building industry; plastic materials for making tight and/or hydrophobic and for sealing in the building industry, especially for treatment of base materials, roofs, streets, embankment-type dams (fill dams), concrete dams, and for sealing and/or jointing bridges, tunnels, swimming pools a...