Oooh, Richard that sounds very nasty. At least acids let you know when they are on your skin. I certainly wouldn't like to take on commercial scale hot alkali bluing, and anyone who does deserves every penny they can get.
Oooh, Richard that sounds very nasty. At least acids let you know when they are on your skin. I certainly wouldn't like to take on commercial scale hot alkali bluing, and anyone who does deserves every penny they can get.