Duct work assemblies can include fabricated elbows, tees, straight sections of duct work, fabric or metallic expansion joints and can be rectangular or round.
![125695a1](https://devptp.usbellows.com/wp-content/uploads/2019/06/125695a1-300x144.jpg)
Duct work assemblies can include fabricated elbows, tees, straight sections of duct work, fabric or metallic expansion joints and can be rectangular or round.