Ceramic structural elements being parts of machines, namely, heat sinks for use in machines, pistons being internal combustion engine parts, cyclones, pump housings, shafts for pumps, shaft couplings not for land vehicles, mining bits, mechanical seals, bearings, flue gas desulphurization nozzles, grinding mills for chemical processing, industrial chemical reactors and parts therefor, mining components and oil and gas drilling components, namely drilling bars, drilling bits, drilling heads, drilling rods, drilling shafts, drilling tool joints, drilling strings; ceramic-coated parts of machines, namely, heat sinks for use in machines, pistons being internal combustion engine parts, cyclones, pump housings, shafts for pumps, shaft couplings not for land vehicles, mining bits, drills for the mining industry, mechanical seals, bearings, flue gas desulphurization nozzles, grinding mills for chemical processing, industrial chemical reactors and parts therefor; connections being parts of machines predominantly of metal, in particular for connecting metal and ceramic parts, namely, joints and joint parts for connecting sliding strips, plates and guides, couplers

Supports and frames of ceramic goods for electro-technical and electronic equipment, namely, heat sinks for use in as supports or frames in computers and electronic components, housings for printed circuit boards, housing for semiconductor chips, casings and casing parts for electrical equipment, namely, housing for switching apparatus, semiconductor chip housings in the nature of vertical and horizontal boats, supports and frames for electrical or chemical reactor tubes, ceramic pedestals sold empty that are specially adapted to contain photographic and computer components, camera housings, supports and frames for chuck cold plates, supports and frames for vacuum wafer chucks, supports and frames for stage location mirrors, optical benches, supports and frames for optical metering structures, supports and frames for optical mirrors, housings for optics, namely housings for lasers and optical lenses; measuring apparatus and instruments, including metrology equipment, namely, air-gearing guide bars and traverses for measuring direction and elevation, electric meters, weighing machines, spectrometers, distance measuring apparatus, instruments for measuring length, slide calipers, measuring apparatus, namely, bevels, angle finders, buckets, cups, glassware, rulers, spoons

Articles of ceramics for building purposes, namely, ceramic tiles, ceramic pipes and fittings therefor, non-metal pipe fittings, non-metal water pipes, non-metal gutter pipes, non-metal sewer pipes, and non-metallic drainage pipes, non-metal tubing and tubing couplings for joining and terminating pipes, nonmetal tubular liners for the lining of coal power plant systems, mining systems, and oil and gas drilling systems, filling material for refilling of shafts, pipe systems for pipe or shaft sealing; portable non-metal buildings; ceramic composite components, namely, non-metal tiles, pipes and fittings therefor, tubular liners for the lining of coal power plant systems, mining systems, and oil and gas drilling systems; semi-prefabricated components of ceramic and building materials, namely, non-metal architectural mouldings of oxide ceramic materials, in particular aluminum oxide, zirconium oxide, beryllium oxide, magnesium oxide, magnesium/aluminum oxide and silicon oxide, aluminum titanate, aluminum silicate, mullite, sillimanite, silicon carbide, in particular being based on silicon carbide, including being reaction-bonded and silicon-infiltrated; all of the aforesaid goods, including being wholly or partially impregnated, reinforced and/or with protective surface coatings, in particular containing silicon carbide and/or boron carbide