In addition to fabric expansion joints, U.S. Bellows is a major designer and fabricator of ducting. Design Integration is the design, manufacture, and shipping of expansion joints integrated into the ducting as a complete unit directly from U.S. Bellows. This enables U.S. Bellows to offer optimum system design and the lowest installed cost.
![Flexxcel hd7](https://usbellows.com/wp-content/uploads/2019/04/flexxcel-hd7.jpg)