... 3.ISO9001:20 KKF Fan and Blowers 1. ApplicationsKKF Fan and Blowers are mainly used in blower fan and draught fan system of ... heat recovery boiler,,,,and various boilers. 2.Structure Centrifugal fan mainly consist of impeller,case,air inlet,adjusting door,transmission ... product performance requirement and operation environment for the Centrifugal Fan of you need,so that we can customize optimal ...