... Flow Fan, Ventilator, Ventilation, Ventilating Fan, Ventilation, Mine Anti-explosive Axial Flow Fans Axial fan, Axial Flow ... used as ventilation applications for coal, metal mine or tunneling works.It features high efficiency, low ... air supply distance, it not only can be complete machine use but also classified use to ... form 3.Not only can be complete machine use, but also can be classified use.