Angle grinder brand (Not working)
Few thoughts...

I don't recognize it, so can't be directly helpful.

Pa6 is usually just a reference to the plastic; not sure about the ge30 part.

You might get lucky by pulling the existing brush/holder and going to a good repair place to see if they have something you can work with.

Have you checked the switch? Failure there would make this a write-off, even with a positive identification.

I'm not a fan of throwing stuff away, but realistically, grinders are a dime a dozen. You can get a name brand used one for about triple what a set of brushes would cost you. You can get a bargain bin (ie, will only work for a little while) one for about the same as a set of brushes.