| 428 / | HD | STOCK MATERIAL OR MISCELLANEOUS ARTICLES |
| 544 | DF | ALL METAL OR WITH ADJACENT METALS {31} |
| 546 | DF | .~ Having metal particles {4} |
| 548 | DF | .~.~ Composite; i.e., plural, adjacent, spatially distinct metal components (e.g., layers, etc.) {5} |
| 553 | DF | .~.~.~ Nonparticulate metal component {5} |
| 554 | DF | .~.~.~.~ Plural nonparticulate metal components {1} |
| 555 | DF | .~.~.~.~.~ Next to each other {1} |
| 556 | ![]() | .~.~.~.~.~.~ Nonmetal in particulate component |