Centrifugal exhaust fan centrifugal device adopt high quality PA66 nylon and fiberglas ,have one good anti-corrosive ability ,and beauty.
Centrifugal exhaust fan adopt the CNCtechnology to manufacture,and control the quality
Safety Protecting Net (Made of Hot-Dip-Galvanized Steel with Welded wire mesh machine, then static coating with silver for further protection and beauty)
High quality aluminum-magnesium alloy and Bearing