| 52 / | HD | STATIC STRUCTURES (E.G., BUILDINGS) |
| 782.1 | DF | COMPOSITE PREFABRICATED PANEL INCLUDING ADJUNCTIVE MEANS {7} |
| 796.1 | DF | .~ Face-to-face sheets in substantially continuous contact {2} |
| 797.1 | ![]() | .~.~ Having separate attached, elongated edging or stiffener |