17 Rubber, raw or semi-worked; gutta-percha; and gum, raw or semi-worked; Plastic material in extruded form for use in production; Packing and insulating material; Flexible tubes, not of metal; 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; 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; shaped plastic parts in a variety of forms made using thermoplastic elastomers and microcellular urethane, for insulating vehicles and machines, in particular against transmission of sound and vibration; insulating materials, namely, shaped plastic parts in a variety of forms made using thermoplastic elastomers and microcellular urethane in the form of engine mounts, body mounts and jounce bumpers for construction of motor vehicles; shaped plastic parts in the nature of plastic parts for vehicles in a variety of forms made using thermoplastic elastomers and microcellular urethane, for insulating vehicles, in particular against transmission of sound and vibration; shaped plastic parts in the nature of plastic parts for vehicles in a variety of forms made using thermoplastic elastomers and microcellular urethane, made with or without sound absorbing lining, and insulating materials in tubular form with a sound absorbing lining for use in in the construction of motor vehicles and in mechanical engineering