Acoustic insulating boards, panels and sheets; acoustic acrylic resins (semi-finished products); acrylic sheets for use in manufacture; acrylic substances (semi-finished); activated carbon materials (other than for textile use); adhesive backed films; artificial resins (semi-finished products); carbon fibers (fibres), other than for textile use; chemical compositions for sealing and adhering together pipe joints; coating materials for insulating conduits; compounds of plastics (semi-processed); covers made of plastics for protecting electrical components; covers made of plastics for protecting mechanical components; covers made of plastics for protecting structural components; covers made of rubber for protecting electrical components; covers made of rubber for protecting mechanical components; covers made of rubber for protecting structural components; dielectric barriers; dielectric materials for insulating surfaces; dielectric materials for use in the manufacture of cables; dielectric materials for use in the manufacture of cords; dielectrics (insulators); electrical ceramic insulators; electrical insulating materials; electrical insulation tape; electrical insulators; electrical polymer insulating materials; electromagnetic shielding paints; joint fillers; expansion joints; fittings (non-metallic) for flexible pipes; heat curable resins; heat formers; heat insulating materials; heat shrinkable silicone rubber tubing; industrial coatings (insulating); insulating materials for cables; insulating materials for electrical purposes; resins in liquid form (semi-processed)