New metal ventilation chimneys on the roof one with rotor on top.

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Size: 3264px × 2448px
Photo credit: © Farmer / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: air, chimney, exhaust, flow, funnel, gas, high, metal, pipe, propeller, roof, rotate, rotor, smokestack, speed, top, tube, turbine, turn, ventilation, wind