Specifications:
1) Frequency: 50Hz
2) Voltage: 220/380V
3) Single-phase or three-phase
4) Fan blade diameter: 250 or 300mm
5) 4 or 6 poles
6) Models: YWF4E-350, YWF6E-350, YWF4D-350, YWF6D-350
7) Good quality and superior price
8) Most of these products have CE approval in Europe