alum
just remember that oven cleaner will change your tolerances a lil if it a part with a tight clearence i have done many parts all different ways and the tolerances always change a lil ....
i have had certain types of degreasers that would take off regular types of decorative anodsing just experiment with them the strongest were the ones i found in dollar stores ..go figure..
the best method of polishing afterwards is the bricks found at a few stores and added to a fast wheel on a larger style bench grinder.... i know that sears sells the bricks for polishing i have never found anything better .............mothers polish and a dremel is a lot of work i promise lol