Roof ventilator, turbo ventilator, roof exhaust fan, industrial roof exhaust fan
Character:
*zinc of steel:180g/m2,
stong rust resistant capobility, long severce life
multi-angle turbine
turbine can be altered, This kind of turbine can be installed on many kind of roof , easy to operate.
- double bearing
with fireprollf nylon engineering plastic outside the bearing,
this kind of complete insulating motivates system can ensure ventilator work more smoothly and efficiently.