Qingzhou Sanhe Machinery Co., Ltd. [China]

1.Roof fan easy for installision 2.wind driving,no cost 3.good ventialtion efficeiency

 Roof Non-Power Fan

1) Natural wind drives, operating 24 hours of whole day2) High sensitivity, slight wind or the range of temperature     can drive the blader to turn around3) Rotary stablely, quietly to improve the inner environment of room4) Using complete senior axis bearing, no lubrication, solid, low fault rote5) Corrosive resistance, acid and alkali proof, long service life

ventilating fan -roof fan