Fittings, not of metal, for flexible pipes; Flexible plastic pipes for conveying natural gas; Flexible plastic pipes for plumbing purposes; Flexible plumbing pipes of plastic; Insulating paints; Insulating refractory materials; Mineral wool for use in the manufacture of filter media; Padding materials of rubber or plastics; Plastic plumbing hoses; Polyurethane film for use in sealing and insulating buildings; Polyurethane film for use as a moisture barrier; Polyurethane film for use in sealing and insulating; Polyurethane film for moistureproof; Semi-finished plastic films and sheets to be used in solar or photovoltaic modules; Tinted anti-glare plastic film for use on windows; Tinted plastic film for use on windows; Tinted plastic films for use on vehicle windows; Tinted, laminated and reflective plastic films for use in home or auto windows; Fittings, not of metal, for compressed air hoses; Flexible tubes of plastic; Granulated materials, namely, granulated expanded schists, for the packing of biological filters used in water treatment and in odor treatment; Insulating materials, namely, polyurethane foam and polyethylene foam; Non-metal fittings for flexible compressed air pipes; Plastic, foam and corrugated PVC fluted substrates; Semi-processed plastics in the nature of filtering materials in industry; Semi-worked synthetic plastic and synthetic resins as semi-finished products in form of pellets, rods, foils, foams, fibers, films and sheets