Ua oso le ulu o le rivet tauaso: aua e le afifiina e le rivet le ulu fao, o le a mafua ai ona osooso le ulu. https://www.yukerivet.com/news/the-core-of-the-blind-rivet-is-not-completely-pulled-out-what-is-the-reason-for-the-fracture/ Taimi meli: Iul-28-2022