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Plastig
 | |
| Enghraifft o'r canlynol | defnydd organig  |
|---|---|
| Math | deunydd |
| Deunydd | Tanwydd ffosil, polymer |
 Ffeiliau perthnasol ar Gomin Wicimedia | |
Caiff plastig ei wneud allan o hydrocarbonau ac fe'i cynhyrchir ar ffurf dwysedd uchel ac isel.
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