1.Strong air flow: 51000 cbm/hour 2. Centrifugal system 3.Phase: 3 phases/single phase 4.Motor: Siemens/Chinese 5.Customized HS series centrifugal exhaust fan adopted the unique centrifugal system, which can open and close the shutters automatically with total 90 degree angle. And with the handle in the side frame, it can easy transportation, load and unload, no effect to the out look and ...