... /min,5.Static6.Type:,external rotor 1.Centrifugal fan from 140mm to 710mm.We can supply all ... size axial fan motor from dia 200cm to 710cm2.High security ... and frequency with 50/60 Hz.4.This centrifugal fan for air condition with external rotor motor has ... have both the forward and the backward curved centrifugal fan . 1.product performance 2, produce process pictures factory ...