There are several permitted ways of producing a welded joint for grease exhaust ductwork. The decisions will rely on the code in your jurisdiction but ought to include things like flanged, telescoping, Bell kind or overlapping joints. If the outlet terminates at a degree that isn't commonly accessible, it ought https://fireresistingductworkinsu89001.buyoutblog.com/36948954/detailed-notes-on-fire-resisting-ductwork-insulation