got a bunch of fittings, faucetd etc.

faucits: some seem to be yellow brass some seem to weigh the same but appear to be siver/white all the way through

fittings: some are pail yellow some are a little darker not red but a pale orange yellow

what do I have and what is the best way ro maximise profits.

thanks

(need to find some good gloves hit the tip of my finger with the Makita cut off blade this am ooooooouch)