A distribution frame casing (ICT) allows for management of elements installed in telecommunication networks.
A recuperator casing (ventilation) - allows for heat recovery from the air ventilated out of a building.
A filter box (ventilation) - a device which is a part of a ventilation system.
A floor drain (electrotechnical industry) - serves to wire up buildings, in particular, office buildings.
A mainboard (heating industry) - basis for installation of housing heat transfer substations.
And many other...