Byddwch
Deunydd a nodweddion:
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| Deunydd | Q235 dur |
| Triniaeth arwyneb | Galfaneiddio Poeth a Pheintio |
| Gorchuddio | dip poeth, 80um |
| Amrediad diamedr uchaf | 60-90mm |
| Amrediad diamedr gwaelod | 132-210mm |
| Amrediad trwch wal | 2.0mm 2.5mm i 5.0mm |
| Uchder | 5m-12m |
| Siâp y polyn | Conigol/Cronig conigol/Octagonal conigol/Sgwâr syth/Tiwbwl grisiog |
| Rhychwant oes | 50 mlynedd |
Ceisiadau:
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Prawf deunydd crai → Torri → Mowldio neu blygu → Welidng (hydredol) → Gwirio dimensiwn → Weldio fflans → drilio twll → Graddnodi → Deburr → Galfaneiddio neu cotio powdr, paentio → Ail-raddnodi → Edau → Pecynnau
Pecyn a Cludo:
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