206 / | HD | SPECIAL RECEPTACLE OR PACKAGE |
521 | DF | SHOCK PROTECTION TYPE (E.G., FREE FALL) {10} |
521.1 | DF | .~ For an egg, fruit, or vegetable (e.g., egg carton) {6} |
521.6 | DF | .~.~ Item supported in an opening in a retaining element {1} |
521.7 | .~.~.~ Item supported in openings of spaced retaining elements |