... 1.High efficiency, low consumption 2.Low noise compact form Industrial Centrifugal Fan Axial fan, Axial Flow Fan, Fan, Ventilator, Ventilation, ... or tunneling works.It features high efficiency, low consumption, low noise, smooth operation, compact form and easy maintenance. According to ... set of equipment allows you to:· choose the type of control (manual or automatic);· operation of the unit in the ...