Adopt the special centrifugal shufter system which open and close automatically when the fan works.
 Centrifugal shutter system and other fitting of shutter made of nylon, high quality engineering plastics, 100%  raw material, high strength, and long service life. 

   The inner steel fitting install in the flange, increasing the security, avoid the stretching change when nylon 
  system operates.
 Adopt the molded stainless steel blade, no broken, no distortion, aesthetic and durable.
 Balance running machinery checked the entire fan blade's balance; ensure operating steady, low noise,
  long service life.
 Adopt the handle as new inset design from our engineer, easy for carry, transport and installation.Also has no affect on the appearance. 

 We could supply V-belt as the type A or type B, upon the varieties demand of different customers.
 
 The belt pulley it made of high quantity aluminum-magnesium alloy, light weight, high strength.
 The high efficient and energy-saving motor passed the national CCC certification. Also protection class:
  IP55, insulation class: F grade.