circle with a bolt head on the metal blades of a rotating fan.
Palabras clave
circle,
fan,
rotate,
vane,
blade,
bolt,
center,
wind,
coolness,
cooling,
propeller,
screw,
metal,
electricity,
power,
turnover,
industry,
air conditioning,
compressor,
flow,
air,
cool,
cold,
cooler