| 52 / | HD | STATIC STRUCTURES (E.G., BUILDINGS) |
| 309.1 | DF | WITH SYNTHETIC RESINOUS COMPONENT {4} |
| 309.13 | ![]() | .~ With nonresinous component {4} |
| 309.14 | DF | .~.~> Exterior faces |
| 309.15 | DF | .~.~> Core |
| 309.16 | DF | .~.~> Embedded, elongated component |
| 309.17 | DF | .~.~> Cementitious material |