Check out post #114 with a link to one (welded 7020 ALU alloy) that was rebranded for Pinarello:
Re-branded ALAN frames: a list

Chances are that ALAN made them for other marques besides Pina, and their own.

I have no personal experience with them and doubt many here will, either, cause they are fairly rare (unlike the thousands of screwed-and-glued frames), but stand by and maybe somebody will chime in