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centrifugal exhaust fan
1.CE Certification ventilation fan
2.big air volume
3.high efficient ,energy-saving motor
centrigugal shutter Hanging exhaust fan
Products Features:
1)Shutter: with a centrifugal system which can ensure the shutter open and close automatically, and makes it dustproff, waterproff.
2)Motor: the high efficient and energy-saving motor eith protection grade:IP55,insulation class:F
3)Belt:automatic tensioner to prevent the belt loosing and froping off.