As I'm doing silver right now for other parts it was time to drop these in the machine and prep them.
What you are seeing is how they look straight from the machine using #80 glass beads at 90psi against an untouched part, what a difference this is.

The rear inner drums brake shoe surface, before

The front inner drums brake shoe surface, after, the steel brake shoe liner looks like aluminum doesn't it..

The front hub cleaned versus the rear one uncleaned

The sprocket cush drive cleaned

Some parts cleaned and one untouched.