China Fengheng Industrial Exhaust Axial Fan 4007 40mm 40*40*07mm 12V 24V 6000rpm DC Ventilation Cooling Fan, Find details about China Industrial Ventilation Fan Cooling 4007, Axial Flow Fans Cooling 4007 from Fengheng Industrial Exhaust Axial Fan 4007 40mm 40*40*07mm 12V 24V 6000rpm DC Ventilation Cooling Fan