Attic Roof Ventilator
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The Operating Theory of Turbine Roof Ventilator:
The undulating vanes leads to smooth rotation at light wind. The bearings at lower and
upper position make smooth turns.
The motivity created by the rotation of the vanes brings the hot air,smoke and wet air up
to the roof and exhausts them out. And there exists the meiobar under the ventilator.
Because the turbine is went on rotating, the fresh air outdoor can enter into the room
continually so that the room can ventilate conveniently.
The single rotating mechanism will work normally except there is the severe natural damage
during 15 years
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