Beth yw deunyddiau rhybedion dall agored?

◆ Rhybedion dall agored alwminiwm/dur

◆ Rhybedion dall pen alwminiwm/dur wedi'u gwrthsuddo

◆ Rhybedion dall agored alwminiwm/dur di-staen

◆ Dur/dur cap mawr rhybedion dall agored

◆ Alwminiwm/alwminiwm countersunk pen agor rhybedion dall

◆ Alwminiwm/alwminiwm cap mawr rhybedi dall agored

◆ Dur/Dur Countersunk Pennaeth Math Agored Rhybed Deillion

◆ Holl ddur di-staen rhybedion dall agored

◆ Rhybedion dall agored dur gwrthstaen/dur

◆ Rhybedion dall agored copr/dur

https://www.yukerivet.com/news/the-nail-cap-came-off-what-is-the-reason/