A Neodymium magnet could be the most generally used sort of rare-earth magnet
https://travisqhzj007.skyrock.com/3337493458-Do-magnets-get-stronger-when-combined.html
A Neodymium magnet could be the most generally used sort of rare-earth magnet
https://travisqhzj007.skyrock.com/3337493458-Do-magnets-get-stronger-when-combined.html