[ Machines, namely, blowing machines for the compression, exhaustion and transport of gases; lubricating pumps; lifting apparatus, namely, mechanical hydraulic lifts; machine tools for material handling; handling apparatus, namely, loading and unloading machines; propulsion mechanisms other than for land vehicles, namely, propellers for machines; power transmissions for machines, other than for land vehicles; mine borers; speed governors for machines, engines and motors; valves being parts of machines; axles for machines; connecting rods for machines, motors and engines; guards being parts of machines; machine couplings other than for land vehicles; handling machines, namely, automatic manipulators for forging presses and for forging machines; industrial robots; motors, other than for land vehicles; pneumatic control cables for machines, engines or motors; hydraulic control mechanisms for machines, engines or motors; drilling bits as parts of machines; centrifugal pumps; drilling heads as parts of machines; bearings as parts of machines; cylinders for machines; centrifugal, cyclone, dust, and oil separators; sorting machines for industry; clutches for power transmissions for machines other than for land vehicles; pumps as parts of machines, engines or motors; suction machines for industrial purposes; tools for drilling as parts of machines; holding devices for machine tools; bearings for transmission shafts being parts of machines; pneumatic transporters; pumps for machines; pressure regulators being parts of machines; back pressure valves as parts of machines; machine wheels; superchargers for machines; conveyors; drilling rigs, floating and non-floating; hydraulic controls for machines, motors and engines; pneumatic controls for machines, motors and engines; crankcases for machines, motors and engines; electromechanical machines for fans, fan motor, pump motors, valve motors in the chemical industry; oil refining machines, namely, oil separators; mufflers for motors and engines; machines, namely, fan motors, pump motors, valve motors, compressor engines, diesel engine set, engines and motors used in power stations; electric generators; compressors, namely, air compressors, gas compressors; pumps, namely, centrifugal pumps, compressed air pumps, hydraulic pumps; regulators, namely, regulators as parts of machines; turbines not for land vehicles; current generators and superchargers for power stations; self-regulating fuel pumps for services stations; fuel dispensing pumps for service stations ]

[ Material testing instruments and machines, namely, metal hardness testing machines; testing apparatus not for medical purposes, namely, gas testing instruments; gas meters; pressure gauges; sprinkler systems for fire protection; chemistry apparatus and instruments, namely, gas detection, particle counter, flow meter, radar level gauge; electric installations for the remote control of industrial operations; apparatus and instruments for checking and supervision, namely, velocity meter, particle counter, pressure measurement instrument ]

[ Gas scrubbing apparatus, namely, gas scrubbers; filters as parts of household or industrial installations, namely, filters for air and gas conditioning, water filters; gas scrubbers as parts of gas installations; cooling installations for liquids, namely, cooling units for industrial purposes, cooling evaporators, cooling domes, cooling towers; level controlling valves in tanks, namely, radar level gauge; oil burners for industrial, commercial, and domestic use; refining towers for distillation as distilling units; cooling installations and machines, namely, air cooling apparatus; regulating accessories for water or gas apparatus and pipes; safety accessories for water or gas apparatus and pipes, namely, plumbing fitting shut-off valves; coils as parts of distilling, heating or cooling installations; regulating and safety accessories for gas pipes; regulating and safety accessories for water apparatus; regulating and safety accessories for gas apparatus; oil-scrubbing apparatus, namely, centrifugal machines; industrial purifying installations for the handling of waste, air, water and energy products including nuclear waste reactors; flare stacks for use in the oil industry; heating apparatus for solid, liquid or gaseous fuels, namely, heat generators; solar thermal collectors for heating; fuel economizers, namely, regulating accessories for water supply, namely, metered valves ]

Drilling for oil, gas, coal, water or other natural resources for the production of power and energy products; vehicle service stations; rebuilding machines that have been worn or partially destroyed; rental of construction equipment; construction of buildings, structures for production of crude oil, structures for storage of natural gas; underwater construction; building construction supervision; machinery installation, maintenance and repair; pipeline construction and maintenance