supply butterfly exhaust cone fan for greenhouse and poultry farm

Description

1. High airflow and high efficiency, more powerful, reliable and energy-efficient
2.The *-blade propeller is statically and dynamically balanced, resulting in low vibration and low noise level during operation
3.Each motor is individually tested for **0% quality control, Advanced motor testing machine can set Voltage, Phase, Frequency  according to each country's request, ensure every motor's quality
4.Using advanced front double door opening device, small wind resistance, good sealing, high efficiency
5. Complete set new CNC production line improved fan quality up to top grade