Gịnị ka ihe mkpuchi rivet blind pụtara?

Isi rivet na-awụlikwa elu: n'ihi na rivet anaghị ekpuchi isi ntu ahụ, ọ ga-eme ka isi rivet na-awụlikwa elu.

https://www.yukerivet.com/news/the-core-of-the-blind-rivet-is-not-completely-pulled-out-what-is-the-reason-for-the-fracture/