I just wanted to know if the Stainless Steel used for this ....also get what we call "white rust" in our country? Here is a article explaining this :
https://www.metalsupermarkets.com/what-is-white-rust/  ....because the small dent might "fade" if other corrosion takes place on the surface of the plates.

I live in a area where there are a real problem with rust... and I cannot use any product that will be influenced by rust and corrosion for something that holds very sensitive data.