aluminum
アルミニウム
3
air conditioner
air duct
air intake shaft
architecture
building exterior
built structure
construction industry
cooling rack
electric fan
exhaust
exhaust fan
exhaust pipe
exhaust vent
factory
flowing
horizontal
in a row
industry
intake
metal
no people
outdoors
photography
pipe
port
rooftop
silver
silver colored
sky
steel
symmetry
three
three objects
vent
wind