... , Ventilation, Ventilating Fan, Blower, Industrial Fan Shutter, Damper,Air OutletImpeller, Axial Fan, Fan, Ventilator, Air-condition, Centrifugal fan, Ventilation, Ventilating Fan, Blower ... , Ventilation, Ventilator Fan, Ventilation, Ventilator Fan, Air Mover, Air Moving Application: To adjust airflow direction and air status.Specification: Square from 100X100mm to ...