Two Speed Inline Duct Blower Fan with IEC Connector ... , low price 3.noiseless and power saving Two Speed Inline Duct Blower Fan with IEC Connector We are ... the biggest and professinal manufacturer of ventilation products including FAN, SPEED CONTROLLER, CARBON FILTER, AIR DIFFUSERS, PIPE FITTING, ETC ... ROHS, 3C and CE. The bearings of motor are single-row deep groove ball bearings of NSK brand. It has ...