Textile energy-efficient axial fan

Wing performance advantages and disadvantages, depending on the wing's lift-drag ratio, is now open on the textbooks used in the old wing to wing and its lift-drag ratio is generally less than 50, while the Northwestern Polytechnical University, the study of advanced wing l -drag ratio of 100 or more lift-drag ratio the greater wing of the higher mechanical efficiency, the higher the efficiency the more energy-saving results are obvious, which is why the Golden Wing brand textile fan energy-saving reasons, the general energy-saving rate 15% -35%.