Cod Math Fflysio | Cod Math Arwyneb | DIM Ffyrdd |
HDB-N-TPN-4-F | HDB-N-TPN-4-S | 4ffordd |
HDB-N-TPN-6-F | HDB-N-TPN-6-S | 6ffordd |
HDB-N-TPN-8-F | HDB-N-TPN-8-S | 8ffordd |
HDB-N-TPN-10-F | HDB-N-TPN-10-S | 10 ffordd |
HDB-N-TPN-12-F | HDB-N-TPN-12-S | 12 ffordd |
HDB-N-TPN-16-F | HDB-N-TPN-16-S | 16 ffordd |