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Gorchudd PBN Boron Nitrid Pyrolytig (PBN)
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Cylch PBN Boron Nitrid Pyrolytig (PBN)
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Rod PBN Boron Nitrid Pyrolytic (PBN)
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Cwch PBN Boron Nitrid Pyrolytig (PBN)
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Rhannau wedi'u peiriannu PBN Boron Nitrid Pyrolytig (PBN)
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Boron Nitrid Boron Pyrolytig Crwsibl OLED (PBN)
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Boron Nitrid Boron Pyrolytig Crucible MBE (PBN)
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Crwsibl PBN VGF, Crwsibl Boron Nitrid Pyrolytig
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Boron Nitrid Boron Pyrolytig Crwsibl (PBN)
