More like the shields inside banks, I expect. Possibly the upgrade was to add this stuff. https://en.m.wikipedia.org/wiki/Aluminium_oxynitride It isn't quite as tranparent as glass. I would like to know how they do this so it looks reasonably like a normal window.
More like the shields inside banks, I expect. Possibly the upgrade was to add this stuff. https://en.m.wikipedia.org/wiki/Aluminium_oxynitride It isn't quite as tranparent as glass. I would like to know how they do this so it looks reasonably like a normal window.