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About heavy duty stainless steel damper manufacturers

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Model D0110DOW, D0120DOW, D0110GOW, D0120GOW are "from wall or floor" integral sleeve dynamic curtain form fire dampers. Model D0110GOW and D0120GOW are created for offer or return ducts that terminate in a grille or register. Model D0110DOW and D0120DOW are made for through penetrations (ductwork connected to both sides) the place https://lorenzoashui.blogripley.com/37712854/the-5-second-trick-for-dampers-for-industrial-sector

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