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The low noise air conditioning fan with outer rotor is a kind of new energy saving fan. They have an advanced structure, which has the outer rotor motor driving wind wheels directly. They are characterized by high ventilation, small volume, high efficiency, low noise, high flow, high wind pressure and stable operation on the whole. They deliver inflammable and noncorrosive gas, in which content of dust and other solids is less than 120mg/m3 and that temperature is in the range of -20℃ to 80℃.
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