| Code de type Flush | Type de code Surface | Pas question ! |
| HDB-N-TPN-4-F | HDB-N-TPN-4-S | 4 voies |
| HDB-N-TPN-6-F | HDB-N-TPN-6-S | 6 voies |
| HDB-N-TPN-8-F | HDB-N-TPN-8-S | 8 voies |
| HDB-N-TPN-10-F | HDB-N-TPN-10-S | 10 voies |
| HDB-N-TPN-12-F | HDB-N-TPN-12-S | 12 voies |
| HDB-N-TPN-16-F | HDB-N-TPN-16-S | 16 voies |