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Buildings, transportable, of metal; latticework of metal; prefabricated buildings of metal; ladders of metal; metal containers in the shape of a bottle for compressed gas or liquid air; containers of metal for storing acids; containers of metal for storage, and transport; packaging containers of metal; water and liquefied gas tanks of metal for industrial use; [ troughs of metal for mixing mortar; ] containers of metal for liquid fuel; chests of metal; hoppers of metal, non-mechanical; containers of metal for compressed gas or liquid air

Disintegrators for chemical processing; round sieve in the nature of paper machine parts; artificial fiber spinning machines; [ machines for the textile industry, namely, artificial fiber drying, spinning, cutting, blowing and scotching machine; apparatus for drawing up beer under pressure; bottle washing machines; agitators for chemical processing; ] mixing machines; cream and milk separators; machines, namely, chemical mixer; oil refining machines; steam superheaters; vulcanisation apparatus in the nature of rubber processing machines, rubber mixing machines, and rubber manufacturing machines; gas separating installations; machines for producing sulphuric acid; machine for producing sodium carbonate; machines for synthesizing alcohol; coking equipments, namely, oil coker for converting asphalt-like material into liquid petroleum fuel blend components and petroleum coke; machine for producing toothpaste; machine for producing cosmetics; ore treating machines for mineral processing; chemical fertilizer processing machines in the nature of producing chemical fertilizer, such as synthetic ammonia, urea, compound fertilizer; equipment for fertilizer, namely, synthesis converter, in the nature of producing chemical fertilizers; fertilizer making apparatus, namely, condensing towers, in the nature of condensing a substance from its gaseous to its liquid state; cuprammonia scrubber in the nature of removing carbon monoxide, carbon dioxide and other contaminants; alkaline wash tower in the nature of removing hydrogen sulfide, carbon dioxide and other contaminants; ammonia separator in the nature of separating ammonia from ammoniacal liquor; urea reactor, namely, urea producing equipment, in the nature of producing urea; water scrubber, in the nature of removing water soluble contaminants; filter presses; filtering machines for chemical processing

[ Cooling installations for water; cooling installations for liquids; ] air reheaters; [ drying apparatus, namely, for use in heating, ventilation systems, air conditioning systems and refrigeration, for chemical processing; ] gas condensers, other than parts of machines; [ installations for processing nuclear fuel and nuclear moderating material; processing installations for fuel and nuclear moderating material; polymerisation installations; atomic piles in the nature of nuclear reactors; nuclear reactors; ] water heaters; [ flare stacks for use in the oil industry; flare stacks for use in oil refineries; gas, oil, and coal burners; ] heating apparatus for chemical processing; heat regenerators; heating apparatus for solid, liquid or gaseous fuels; electric heating apparatus for chemical processing; distillation columns; distillation apparatus not for scientific purposes; heat exchangers, not being parts of machines; evaporators for chemical, offshore oil, pharmaceutical processing, and seawater desalinization; gas scrubbers in the nature of parts of gas installations; [ steam boilers, other than parts of machines; incinerators; heating plates in the nature of electric hotplates; ] refining towers for distillation; steam generating installations; steam accumulators; stills, not for scientific purposes; flues for heating boilers; water distribution installations; pressure water tanks; expansion tanks for central heating installations; water desalination plants; water purification installations; water filtering apparatus; purification installations for sewage

Building construction supervision; construction consultation; electric appliance installation and repair; machinery installation, maintenance and repair; freezing equipment installation and repair; air conditioning apparatus installation and repair; factory construction; pipeline construction and maintenance; plumbing; installation of doors and windows