1.ce certificate
2.high quality
3.big air volume
4.galvanized frame
6.low noise

product features

               1. Galvanized zinc plate frame, national level one environment friendly
                   galvanized zinc plate, thicker zinc coat
               2.Aluminum magnesium alloy hub, light weight, high strength and good tensile
               3. Stainless steel blade, bearing imported from France, Europe industry motor
                   standard
               4 . Belt imported from Korea, type B, thicker and durable, adjust automatically.
               5. Special push-pull device,make sure the shutter open and close completely.
               6. Six strict inspection process: noise inspection, vibration test, concentric
                   performance test, fan blade rotation test, wind capacity test and the efficiency
                   test
                7. with CE, CCC, ISO certificate