draught fan promotion

1. Fan Box Material: 1mm thickness galvanized steel panel.                              2. Fan Blade Material: 1.5mm thickness galvanized steel panel.                        3. Shutter Material: 0.5mm thinckness galvanized steel panel. Automaticlly (Air flow pressure) close design.                                               

4. Motor: 380V/50HZ, 3Phase, 1Speed, Home-made motor.   

• heavy duty exhaust fan