I posted here a while ago about identifying an Abus keyway so I trust this is the correct place to post!
Ok, so, this is the second time I've ran into this particular keyway issue on two separate occasions so I feel compelled to ask now.
I picked up a bunch of used padlocks and I'm trying to identify what key blank is suitable for this keyway. I have no suitable blanks that fit. I've asked my local locksmiths to no avail, one suggested it's part of a master key system but that's not possible as it contains no master wafers...? It belongs in the Union family I'm sure. I've even gone through the struggle of using a UNI32 which doesn't fit unless you mill a sloped grove into it, and yet the blade isn't tall enough for 2 super high cuts. Doesn't even look like a complicated keyway really.

And here is a similar keyway that looks like it would use the same basic key to the one above but are totally different Union padlocks and again with no master wafers inside, and completely different bitting.

I think a lot of these have those U-numbered keys but can't find any matches online.
Another type of padlock I spotted recently when I was in Lithuania were used on their substations. I've no interest in their substations obviously because I don't want to die but I was peeking at their padlocks and struggling to understand what exactly they were and how they operated. My girlfriend and I went to about 5 locksmiths there and they couldn't tell me anything (but they did sell a fantastic selection of high security locks that I picked up for practice). These padlocks look relatively cheap, but look like they use some kind of radial key, no visible pins, couldn't tell what part moved as I didn't have anything with me and didn't really want to be seen



Thanks for any pointers.
Kind regards.