1.centrifuge fan 2.CCC&CE certificate 3.big air volume 4.high quality and low price 5.poultry faming fan
Shutter:with a centrifugal system which can ensure the shutter open and close automatically,
And makes it dustproof,waterproof.
Motor:the high efficient and energy-saving motor with protection grade:IP55,insulation class:f
Belt:automatic tensioner to prevent the belt loosing and droping off.