Re: reloading steel cases???
I'm no AK expert in any sense but the answer to steel cases is "maybe, sorta".
Maybe if it's boxer primed. Look inside, if there is a single flash hole in the middle, it boxer. If there are two smaller holes off center it' Berdan and not really worth the trouble even if it were brass cases.
Sorta if it's boxer primed and you are willing to put up with the effort and potentail for harm to your dies and press. Steel cases were made for "shoot and toss".