Fan double doors closed with the rubber sealing which effectively avoid air backflow when start fans at different time. Greatly improve the operation efficiency by 15-20% compared with the same power fan.

Sanhe fan blade is special designed for top grade efficiency which made of Krupp stainless steel by punch forming. Large air volume, no deformation, no broken, no dust, attractive and durable. Thickness: 1.2mm, surface finish: BA grade.

Fan blades are adjusted by intelligent dynamic-balance tester, smooth running, low vibration, small noise, good stability.

The first one in China to adopt Type B belt which 3times longer service life instead of type A.

The sole manufacturer in China which adopt Hot-dip galvanized blade support and safe net, never rust in the future, adopt high grade standard accessories, no rust.

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