1.Advanced front double door opening device adopted,small wind resistance, good sealing, high efficiency.

2.Lengthened cone improve exhaust pressure.

Fan double doors closed with the rubber sealing effectively avoids air backflow when fans start at different time making the operation efficiency  greatly improved by 15-20% than before.

1.Krupp stainless steel by punch forming for high     efficiency.

2.Large air volume, no deformation, no broken, no dust, attractive and durable.

3.Thickness 1.2mm, surface finish BA grade.

Adjusted by advanced dynamic-balance tester ensures smooth running, lower vibration, less noise, and more stability.

Type B belt is used for three times longer life than belt A.

Hot-dip galvanized blade support and safe net adopted ensuring no rust.

Complete new CNC production line improved fan quality up to top grade, aesthetic appearance.