17 Gum, unprocessed or semi-processed for use in the manufacture of tires and of technical rubber goods, namely, shoes soles, gaskets, seals, profiles; goods made of semi-processed plastics, namely, flexible plumbing pipes, air conditioner hoses made of plastic, agricultural hoses made of plastic; solutions of rubber; synthetic rubber; plastic materials in extruded form for industrial use; packing, stopping and insulating materials, namely, cellulose acetate film, electrical insulating rubber products, insulating polymeric shells, namely, macro and micro capsules containing phase change material used for thermal regulation in the manufacture of clothing, footwear and headgear, and sheets of plastic fabric used as an insulating infiltration barrier in building construction; flexible tubes of rubber and plastic for use in construction; base elements consisting of semi-processed plastic granules for industrial use; yarns of plastic materials; plastic foils, other than for wrapping; plastic fibers, not for textile use, for use in the manufacture of tires, hooks, loop fasteners; semi-finished artificial or synthetic resins in the form of pellets, rods, foils, foams, fibers, films, and sheets, for general industrial use; adhesive strips other than for stationery or household purposes and not for medical use, for industrial and commercial use; latex rubber for use in the manufacture of tires, cable, and paper; packing and stuffing materials of rubber or plastic for shipping containers; padding or stuffing materials of rubber or plastic for shipping containers; plastic sheeting for agricultural use; rings of rubber for use in pipe connection seals and in plumbing pipes; liquid rubber; rubber sleeves for protecting parts of machines; rubber stoppers; shock-absorbing buffers of rubber for industrial machinery and for physical protection of items during shipping; soldering yarn of plastic; rubber bumpers for use in the manufacture of vehicles and for loading docks; padding materials of rubber or plastic; plastic yarn for soldering; rubber yarn, not for use in textiles; gum for recapping tires; valves of rubber or vulcanized fiber; foils made of viscose other than for wrapping; elastic rubber yarns, not for use in textiles; insulation material, namely, polyurethane foam, polyurethane films, polyethylene foam, sheets, panels, covers for use in building construction and in transport and storage of goods; plastics for electric, heat and sound insulation for industrial applications and for use in building construction; plastic materials for industrial use in the form of sheets, slabs, rods or shafts, particularly mastics, resins of plastic, dry mixtures of plastic, powders of plastic, granules of plastic and powders of plastic for general industrial use; moldable base compounds and master batches made with plastics, resins or rubber for use in concrete patching, in the manufacture of tires, for joints, and for use in the manufacture of vehicles; sheets of recycled cellulose acetate, other than for wrapping, for use in the manufacture of finished rubber goods, namely, in the manufacture of adhesive tape, of sealings, of sealants, and of foams