17 Components and semi-finished products for sealing purposes, namely seals, packings, sealing cords, sealing twines or sealing strips, plates for the production of seals, consisting of carbon or of carbon reinforced with carbon fibers or of plastic reinforced with carbon fibers or of carbon bound with plastic, graphite forms of carbon in each case included, or of graphite foil or graphite laminate, compounds and cements in the nature of caulking for sealing and insulation, consisting of mixtures of carbon and/or graphite and/or carbon fibers or graphite fibers as fillers and tar and/or pitch and/or synthetic resin as binders; graphite foils and fibers for use in the manufacture of structural parts for airplanes; expanded graphite sold in bulk or loose form for use as packing materials, sealing materials and heat insulating materials graphite foils for use in or as heaters, linings, mold facings, backing strips for soldering, welding and sintering work, vapor phase deposition of metal films, protective material against laser beams, and packings and flat gaskets in high temperature applications; gaskets and seals for use in furnace boilers, heat pumps, sewage disposal plants, sewage treatment plants; gaskets, seals and packings of flexible graphite foil and carbon/graphite yarns for use in nuclear reactors, heat pumps, steam valves, plumbing valves, and valves for air conditioners; heat shields and heat-insulation in the semiconductor industry and chemical industry consisting of fibrous and non-fibrous carbon and/or graphite, particularly of graphite foils, graphite laminates, expanded graphite or of graphite reinforced with carbon fibers; friction linings, namely clutch linings and brake linings, and semi-finished products in the form of blocks for the production of friction linings, consisting of carbon, or carbon reinforced with carbon fibers, of plastic reinforced with carbon fibers, of carbon bound with plastic, graphite forms of carbon in each case included; fibers, threads, bulk fibers, wadding, wool, felts, slivers, woven fabrics, knitted fabrics, braidings consisting of carbon and/or graphite, for use as fire-blocker fabrics, insulation of high-temperature furnances, thermal and sound insulation, reinforcement of thermoplastics, improved conductivity of plastics, furnance construction; graphite foils and graphite laminates, for use in sealing systems in the chemical, power generation, refinery, automotive, paper, and process equipment industries; linings made from carbon and/or graphite for use in electrolysis systems; semi-finished products in the form of plates, blocks, tubes, longitudinal profiles, foils for use in the manufacture of susceptors, crucibles, heaters, heat shields, gas leading tubes, spectrometers, anodes, seals for the production of semiconductors and processing of high-purity substances, and for use in laboratory technology and analysis technology, namely, for processors, computer technology, solar technology, optical-fiber technology, spectrometry, consisting of carbon or of carbon reinforced with carbon fibers or of one of the above mentioned materials, but with a coating of pyrocarbon, pyroboronitride, silicon carbide or of pyroboronitride, pyrocarbon, silicon carbide or of plastic reinforced with carbon fibers or of carbon bound with plastic; high corrosion resistant webs and compounds consisting of rubber and plastic for the lining and/or covering of surfaces, namely, industrial floors, railcars, containers, pipes and appliances, or of parts therefor; compressed air, pipe fillings of graphite, couplings and joints of graphite; seals for cylinder joinings of graphite foil; graphite powder fillers for extruded plastic; soft and rigid carbon/graphite felt for insulation in the heat treatment industry; gasket material of flexible graphite foil for high-temperature, high pressure applications; carbon/graphite packing for gaskets and centrifugal pumps; watertight rings for plumbing pipes, rubber rings for pipe connection seals; carbon;graphite seals for various pumps and valves used in high temperature, high pressure applications; carbon/graphite packing material for forming seals; graphite pipe gaskets for the chemical, petro-chemical, power generation, paper and refinery industries; graphite pipe for heat exchangers; sleeves of rubber for protecting parts of machinery, in the case of the abovementioned materials, insofar as they contain carbon or graphitic forms of carbon; friction linings, linings for clutches and brakes; parts for water conduits; semi-finished carbon, reinforced carbon, carbon impregnated with tar, pitch, synthetic or natural resins and carbon bound with plastic in the form of blocks, boards, bars, tubes and longitudinal profiles for use in the metal, wood, plastic, steel and building industries; mineral wool for use in the manufacture of filter media