Raw or partly processed mica; Guttapercha; Liquid latex; Stuffing of rubber or plastics; Raw or semi-worked gum; Caulking materials; Synthetic rubber; Acoustic insulating materials; Insulating refractory materials; Plastic in powdered form; Non-metallic hoses and flexible pipes; Packing and insulating material; Semi-worked rubber; Semi-processed plastic in the form of films, sheets, tubes, bars, or rods; O-shape rings