WC:

You seem to be spot on as the makers/retailers don't care, don't know & don't want to know, i.e., turn a blind eye to history. It is just us Baker's dozen of steel fanatics that are consumed w/ what & why. Just looking @ the acronym, other than country of origin that uses the letter Z in the gun trade, I see little use for commencing w/ a Z unless there was some addition of Zinc; & there could be another element that begins w/ a Z that I omitted. I guess it could contain some unobtainium & they decided to use the last letter of the alphabet?

Cheers,

Raimey
rse