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Metal ventilation ducts curving along a wall
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Metal pipe and gate attached to the exterior wall of a factory covered in snow
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Multiple air conditioning units mounted on a building exterior
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かさこ

Air conditioning units mounted on a building's exterior wall with a metal fence
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かさこ

Multiple air conditioning units mounted on the exterior wall of a building
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かさこ

Metal exhaust pipe mounted on stairs with surrounding wall features
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Multiple air conditioning units and pipes mounted on a building exterior
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かさこ

Metal exhaust pipe attached to a wall near stairs
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Multiple air conditioning units and pipes mounted on a white wall
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かさこ

Metal duct extending vertically along the side of a building
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TATSU

Image featuring silver ducts attached to the exterior wall of a building
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Unique metal duct design on a roof against a blue sky
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Metal pipes attached to a wall structure
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ookinate23

Air conditioning units and piping mounted on a building's exterior wall
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かさこ

Two air conditioning units mounted on a building wall
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かさこ

Large air conditioning units and ducts installed on a rooftop at night
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かさこ

Multiple air conditioning units mounted on a building's exterior wall
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かさこ