The better quality copper wire is used to ensure the safe operation of the motor and make the machine more efficient and stable. Wear-resistant, not easy to rust, stable high-speed operation, not afraid of vibration The impeller has good structural strength and large air volume The motor cooling back cover adopts a new design, which is more closely connected with the motor, increasing the fastness and better heat dissipation performance. Learning cellular technology, polygonal building structure, high density, large inlet wind, fast wind speed, high efficiency, , not easy to break.