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1
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.
chemical products for industrial and scientific purposes, namely, catalysts for use in sulfur recovery processes and hydroge-nation processes, ion exchangers, adsorption agents for the purification of gases and for sulfur recovery processes
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7
Machines and machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); agricultural implements other than hand-operated; incubators for eggs.
gas compressors, liquid pumps and centrifuges
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9
Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus.
instruments, namely, pressure gauges, temperature gauges, flow throughput gauges and gas analyzers for measuring surveillance of pressures, temperatures, flow throughput and gas analysis
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11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
separators for the cleaning and purification of gases; separators for separating liquids from gases, vaporizers for vaporizing liquids, waste heat boilers and heat exchangers; gas burners and catalytic reactors for the conversion of hydrogen sulfide with sulfur dioxide in elemental sulfur
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37
Building construction; repair; installation services
installation, repair and maintenance for third parties of apparatus for the decompositon and washing of gases, burners and reactors for the conversion of hydrogen sulfide with sulfur dioxide