In the sentence below from paragraph 3 what is the word staple mean​

how am I suppose to know what your not talking about when you didn't even put a image in image of what ?

If you are lucky enough to find old  berlin iron jewelry, it will probably be usually the only care that you will have to  take  of it is to be sure that it does not  rust. if the black surface has worn or flecked  off, you can safely touch it up with a bit of