Centrifugal fan Impeller in Aluminium,Fan Blade Application: all kinds of centrifugal fans Diameter from 160mm to 1,000mm. ... Fan Blade, Axial Fan, Fan, Ventilator, Air-condition, Centrifugal fan, Ventilation, Ventilating Fan, Blower, Industrial Fan, Ventilation, ... Air Moving Features:1) Application: all kinds of centrifugal fans2) Diameter from 160mm to 1,000mm. Aluminium Centrifugal Fan Impeller