1.20 years fan&motor manufactruer 2.competitive price,high quality---CE& CCC 3.5W-34W,220-240V,50/60hz. 1. Company ... enterprise mainly produces Centrifugal fan and blower, external rotor axial fan,ventilation fan, Duct fan, shaded pole motor, external rotor fan motor,aluminum die casting parts ... 34W, which can be adjusted according to the stack length.(3)Insulation class: E, B, F, our usaual is B ...