Flanged joints are created by bending the end of your raw duct or fitting to make a ¼” flange. Under will be the code portion for the Worldwide Mechanical Code for your authorized welded duct connections types. Whether you are upgrading current ventilation hoods for commercial kitchens or specifying new https://grease-tight-extract-duct23445.dm-blog.com/37029749/the-definitive-guide-to-grease-tight-extract-ductwork