... 3.ISO9001:20 HTFCf(DT) Blowers abd Fans 1. ApplicationsHTFCf(DT) Blowers abd Fans are mainly used in ... heat recovery boiler,,,,and various boilers. 2.Structure Centrifugal fan mainly consist of impeller,case,air inlet,adjusting ... product performance requirement and operation environment for the Centrifugal Fan of you need,so that we can ... desityaltitude of operation place ... HTFCf(DT) Blowers abd Fans