Acrylic resins, semi-processed; Caulking materials; Insulating materials; Insulating paints; Insulating refractory materials; Insulating varnish; Liquid rubber; Non-metal sealing rings for use as connection seals; Pipe gaskets; Plastic plumbing hoses; Plastic substances, semi-processed; Raw or semi-worked rubber; Rings of rubber for use as pipe connection seals; Sealing and insulating materials; Stuffing of rubber or plastic; Synthetic resins, semi-processed; Synthetic rubber; Watertight ring...