Alternate Spinning can reduce the turbulence of adjacent fans and increase air pressure. The airflow is spilt by the triangular fan edge, and guided smoothly through the 3D stripe curve on the fan surface. Graphene nano lubricant can extend the life of sleeve bearing fan by 2.1 times, close to the life of double ball bearing, and is quieter.,Alternate Spinning can reduce the turbulence of adjacent fans and increase air pressure.
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