AOLAN EXTRACT FAN airflow from 5700m3/h upto 55800m3/h,  stainless steel body,   1400mm blade 55800m3/h airflow

Characteristics:
1. Using stainless steel fan, big airflow,nice outlook,long lifespan,not deformation,not fracture,not dusty.
2. Voltage of motor depends on customers's requirement.
3. Special water-proof design bearing, high quality, low noise, long lifespan, free maintance.
4. Optional fan with auto-tight device belt, eusure belt work normally.