Gun Talk FAL Mag ID

I picked up some metric FAL mags a little while back and I was hoping I could get some help IDing them. I was told they were mostly Belgian surplus, but that it was possible some mags may be from different countries. I have at least 9 and I might have more in pouches, but from the ones I'm looking at I can pretty safely say five are Belgian, one is a Steyr, and there are three I'm having trouble identifying. These three mags all seem like they might have been scrubbed, as they all have similar marks on the bottom left side of the mags. They don't have any surviving symbols on the rest of the mag. The middle and right mags seem to have a more straight and flat rear locking lug, and they have an extra hole in the floorplate. They also don't have the 2 rear holes in the follower and the bump on the left goes all the way go the back of the follower. I'm almost sure the left one is Belgian, but scrubbed for some reason. All three seem to have a pretty similar finish on the follower, mag, and floorplate. I don't know FAL mags so any help is appreciated.