Tiwb a Bandiau
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Tiwb Bochal 6 Molar – Sylfaen Rhwyll – BT1
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Tiwb Bochol 7 Molar – Sylfaen Rhwyll – BT1
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Tiwb Bochol 6 Molar – Heb Nicki – BT2
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Tiwb Triphlyg-Trawsnewidiol-BT7
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Tiwb Bochol Hunan-Glymu-BT8
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Tiwb Bochol 7 Molar – Heb Nickly – BT2
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Tiwb Bochal Trawsnewidiol – BT3
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Tiwb Bochol Bachyn Hir – BT4
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Tiwb Dwbl-Anaddasadwy-BT5
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Tiwb Dwbl - trosiadwy-BT6