The 0800 Sequence is on the market in two frame designs to be used with steel duct: a double flange screw gap mounting sort (M1) or even a knock-more than tab type (M2). Both types include a straightforward set up Minimize-out template which makes the oval condition openings extra very https://dampers-for-industrial-se90111.howeweb.com/37767212/not-known-factual-statements-about-heavy-duty-stainless-steel-damper-manufacturers