17-07-2023, 12:44 PM
It can be as thin as 0.2 millimeters which is fascinating for pottery 4,000+ years ago.
http://www.newschinamag.com/newschina/ar...le_id=7118§ion_id=9&magazine_id=78
http://www.newschinamag.com/newschina/ar...le_id=7118§ion_id=9&magazine_id=78