Axial Fan, Fan, Ventilator, Ventilation, Ventilating Fan, Ventilation, Ventilator Fan, Ventilation, Ventilator Fan, Air Mover, A Axial Fan, Fan, Ventilator, Ventilation, Ventilating Fan, Ventilation, Ventilator Fan, Ventilation, Ventilator Fan, Air Mover, Air ... and air exchanger for hotel, verious factories,mines,tunnelSpecification: 1) Fan diameter: 200-2400mm, 2) Air volume: 500-200000m3/h 3 ...