The 0800 Sequence is obtainable in two frame models to be used with steel duct: a double flange screw hole mounting type (M1) or maybe a knock-more than tab variety (M2). Both of those variations have an easy installation Slice-out template which makes the oval shape openings further simple to https://heavy-duty-stainless-stee78900.ssnblog.com/35999579/a-secret-weapon-for-heavy-duty-stainless-steel-damper-manufacturers