| Unit | Code | Design | ||
|---|---|---|---|---|
| General shape | 10 | Parallel faces | ||
| 20 | Truncated pyramid | |||
| 30 | Pyramid | |||
| Base shape | 10 | Triangular | ||
| 20 | Quadrangular | |||
| 30 | Pentagonal | |||
| 40 | Hexagonal | |||
| 50 | Octagonal | |||
| Closing system | 01 | Without flaps | ||
| 10 | Full overlap square flaps | |||
| 11 | Reduced square flaps and one full flap | |||
| 15 | Full overlap square flaps and hanger system | |||
| 20 | Tuck flap | |||
| 21 | Tuck flap and hanger system | |||
| 55 | Automatic closing (unglued) | |||
| 60 | Automatic closing (two-point gluing) | |||
| 90 | "Rosette" closing system |