Wat heescht blann Nieten Jumper?

Blann Nieten Sprangkop: well den Nieten den Nagelkapp net wéckelt, verursaacht et den Nieten Sprange Kapp.

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