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Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins, unprocessed plastics; manures; fire extinguishing compositions; tempering and soldering preparations; chemical substances for preserving foodstuffs; tanning substances; adhesives used in industry; carbon materials, in particular graphite, carbon, carbon graphite, electrographite, metal graphite; silicon carbide and graphite composite materials; silicon carbide; ceramics; graphite for industrial purposes; artificial resin-bonded graphite; silicon dioxide (quartz) for industrial purposes. Common metals and their alloys; metal building materials; transportable buildings of metal; materials of metal for railway tracks; non-electric cables and wires of common metal; ironmongery, small items of metal hardware; pipes and tubes of metal; safes; goods of common metal not included in other classes; ores, components of metal composite materials, sintered metal parts, in particular sintered metal bearings, sintered filters, sintered mouldings of iron, steel, bronze, aluminium and stainless metal materials; semi-finished goods (stampings) of metal; metal strands (included in this class); mouldings of light metal and heavy metal castings, worked and unworked (included in this class); injection mouldings of metal manufactured by means of powder metallurgy; foam aluminium; metal building materials, in particular enamelled facade and wall claddings; tanks of metal, in particular enamelled. Bearings (machine parts); pump components (included in this class), packaging machines; sintered metal parts, in particular sintered metal bearings, Life-saving and teaching apparatus and instruments; automatic vending machines and mechanisms for coin-operated apparatus; fire- extinguishing apparatus;Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes; ceramic industrial burners; burner pipes, jet tubes and flues being parts for burners or furnace installations, heat exchangers, spray nozzles, in particular for flue gas desulphurisation installations, all mainly of ceramic materials or enamelled metal; apparatus and installations consisting thereof for air conditioning technology and environmental simulation, in particular climatic chambers, special purpose climatic rooms, room air conditioners, sanitary air conditioning installations, vacuum climate testing apparatus and cabinets; box air conditioners; clean room air conditioning installations; installations for air conditioning and sterilising air; heating apparatus (included in this class) and drying apparatus; heat sterilisers; heating, tempering and and conveyor oven. Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes; plastics in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes not of metal; components of fibre composite materials, components of carbon or graphite being semi-finished goods, in particular contact parts, electrodes, carbon brushes, sliding inserts, pistons, gaskets; sealing rings, crucibles, mouldings (included in this class), where appropriate in combination with metal parts or plastics; carbon materials (semi-finished products); carbon fibres, other than for textile use, carbon graphite materials (semi-finished products); graphite materials (semi-finished products); carbon composite materials (semi-finished products); all the aforesaid semi- finished products being also impregnated, reinforced and/or with protective surface coatings (whole or in part) and all the aforesaid goods included in this class. Treatment of materials; metal treatment; surface finishing; enamelling.