Reading it, I think the innovation is in the construction of the panel, which allows for a brazing process using superheated air. It could work with any materia

Reading it, I think the innovation is in the construction of the panel, which allows for a brazing process using superheated air. It could work with any materials you would use to make a honeycomb panel. A traditional honeycomb panel has to be brazed by baking it in an oven, or otherwise applying heat from outside. With the b-core construction, there is space between the tubes for air to flow, so they can shoot superheated air through the interior to braze, which apparently has advantages in speed and uniformity.