Duct component detail .

Duct component detail .Rectangular metal ducts are built by putting two pieces of bent sheeting together. The flat pieces of metal are first cut to the desired size with a cutting machine or plasma cutter. Then, another machine folds the sharp edges inward. Thirdly, the sheet is shaped into an L or a tube including stainless steel worm drive camp, for details of Duct component download this file.