Adjustable blade pitch Axial Flow Fan; Dia.:1,800mm Airflow: 45,000-150,000m3/h Pressure: 1200pa Axial fan,Axial Flow Fan, Fan, Ventilator, Ventilation, Ventilating Fan, Ventilation, Ventilator Fan, Ventilation, Air MoverApplication: air ventilating and exhausting in subway, tunnel, mineral, mountain,and construction engineeringSpecification: 1) Type: A-Adjustable blade pitch in operation B- ...