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The classification of mini DC cooling fan

1. According to the working voltage of cooling fans: AC cooling fan, DC cooling fan

2. According to the driving motor of the cooling fan: brushless DC cooling fan, DC brush cooling fan, brushless AC fan.

3. According to the BEARING system: oil-bearing (SLEEVE BEARING), BEARING (BALL BEARING),CERAMIC NANOMETER BEARING.

4. According to the direction of steam flow: axial cooling fan, centrifugal cooling fan, cross cooling fan.

With the development of technology, waterproof fans for use in the water have also been created, which is a milestone in the history of small cooling fans.