Axial Flow Fan 1.All kinds of industrial fans ... the size and half the weight of centrifugal fan with the same air volume. The mounting mode ... 6dB, enhancing its intensity.T35, BT35 fans consist of impellers, casing, air collectors, which are made of steel ... are made of section bar, connecting with duct. Impellers are composed by blades and hubs. Casings consist ... steel, reducing air loss. Axial Flow Fan