Aeration and venting systems
Air-conditioning systems
Air filter construction
Air heaters
Air preheaters
All metallurgical engineering

Blast heating systems
Blowers

Cement factories
Chemical industry
Chimney construction
Conveyor systems (employing pneumatic and vibration techniques)
Crushing plants

Diesel power plants
Drying systems
Dust exhaust systems
Dust extractors
Dust rejectors

Economizers
Electrical conductivity
Exhaust lines
Exhaust systems of all types
Explosive atmospheres/media (ATEX)

Filter systems
Flue construction
Flue gas systems
Food processing industry (FDA)
Furnace construction

Gas generating, cooling, cleaning splitting, and drying systems
General apparatus construction for chemical systems

Heat exchanger
Heat technique
Heaters: gas and air heaters

Industrial furnaces

Lacquering systems
Large motor construction

Metallurgical systems

Paint mist suction systems
Paper machinery manufacturer
Pharmaceutical industry
Pipeline construction (especially construction of large pipes)
Power plants
Preparing, cleaning and drying systems for natural gas

Reactor construction
Refinery gas
Refuse incineration

Sheet-metal containers and sheet-metal pipes for gas lines
Shipbuilding
Sintering and pelletising systems
Sludge combustion system
Steam generating systems
Steel construction for engineering work, for protection against heat and corrosion
Suction systems
Systems for natural gas, coal, coke, and ores

Ventilator construction
Vibration technique