Pakatikati pa rivet wakhungu sichinatulutsidwe kwathunthu, chifukwa chake chathyoka ndi chiyani?Ⅱ

3. Mutu wa msomali umagwa: Pambuyo pa kukwera, mutu wa mandrel sungathe kukulunga ndikugwa kuchokera ku thupi la rivet.

4. Kuthamanga kwa thupi kuphulika: Pambuyo pokoka riveting, thupi la riveting liri ndi mng'alu wautali kapena wosweka kwathunthu.

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