If you are looking for the best quality silver or black oxide spinner and spoon components Pen-Tec is the best that I have ever used. Their finishes are better than anyone's.
I have been making my own spinners and spoons for over 10 years and when I want silver plate or black oxide Pen-tec is all I use.
If you are into fishing for steelhead with spoons there is something about the bends in these spoons that work better. They just plain out-fish anything else I have ever used.