I need some info about Blade Care

Hello, I'm honestly not very active on this site, but I've come to it because I need help. recently ive moved to a new room and after digging all of my boxes of stuff out of the garage i found my beyblades, Plastic Gen and Metal series, but they all have one problem in common. The metal of the weight disks and metal wheels of the old blades seem to have iodized or something, their much rougher and have become a light color, I need help, is this dangerous has my metal parts become unusable, is there any way to repair or clean them? i would really appreciate the help, if anyone can lend me tips or help just reply to this thread or even email me at wdragonlord@yahoo.com. this is very important to me to repair and keep all my old blades still functional and in good condition.
(Jul. 07, 2017  7:27 AM)KerbecsBlader Wrote: Hello, I'm honestly not very active on this site, but I've come to it because I need help. recently ive moved to a new room and after digging all of my boxes of stuff out of the garage i found my beyblades, Plastic Gen and Metal series, but they all have one problem in common. The metal of the weight disks and metal wheels of the old blades seem to have iodized or something, their much rougher and have become a light color, I need help, is this dangerous has my metal parts become unusable, is there any way to repair or clean them? i would really appreciate the help, if anyone can lend me tips or help just reply to this thread or even email me at wdragonlord@yahoo.com. this is very important to me to repair and keep all my old blades still functional and in good condition.

https://youtu.be/fj_sNfw3nPQ