Product D0110DOW, D0120DOW, D0110GOW, D0120GOW are "away from wall or ground" integral sleeve dynamic curtain type fire dampers. Model D0110GOW and D0120GOW are created for offer or return ducts that terminate at a grille or sign-up. Model D0110DOW and D0120DOW are designed for via penetrations (ductwork connected to either side) the https://heavydutystainlesssteelda12234.bcbloggers.com/36117076/top-guidelines-of-dampers-for-industrial-sector