17 rubber, namely, crude rubber, synthetic rubber, raw or semi-worked rubber, rubber sheets, and cured rubber; plastics in extruded form for use in further manufacturing; insulating products, namely, crude rubber, synthetic rubber, raw or semi-worked rubber, rubber sheets, cured rubber, plastic, microcellular urethane, water and hydraulic fluid for insulating against sound, cold, heat, impact, vibration, shock, moisture and environmentally hazardous substances, in particular for vehicle and machine construction and for the building sector, conveyor installations, public roads, noisy environments, and sports and leisure facilities; insulating materials made using elastomers and thermoplastic elastomers, in particular based on natural and synthetic rubber and microcellular urethane, and made using thermoplastics, thermosetting plastics, plastisols, foams of plastic and of metal, bitumen and substances similar to bitumen, non-woven fabrics, or of mineral, plastic and natural fibres and fabrics made with the aforesaid fibres; insulating materials made with or without fillers and with or without accessories of metal; insulation board for insulating against sound, cold, heat, impact, vibration, shock, moisture and environmentally hazardous substances; insulating foils for insulating against sound, cold, heat, impact, vibration, shock, moisture and environmentally hazardous substances; insulating mats and insulating coatings for inhibiting the transmission of sound; sealing and insulating materials for motor vehicles for sound deadening and sealing out sound; noise screening elements, namely, sound absorbing floor underlayment, sound absorbers and diffusers in particular for vehicle and machine construction and against traffic noise