Silk + Chromium Plating, Both from China

choi

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(1) Silk History. Demure Look, undated.
http://www.demurelook.com/about-silk/silk-history.html

(2) Terracotta Warriors (Terracotta Army). ChinaTourGuide.com, undated.
http://www.chinatourguide.com/xian/terracotta_warriors_details.html
("Scientific testing reveals that the surface of the sword contains chromium, with a thickness of 10 to 15 micron, which acted as a protected coating against corrosion. The chrome-plating technolgoy was invented by the Germans, Americans in 1937 and 1950, but it had emerged in China 2200 years before.")

This web page is cited as reference 31 in
Terracotta Army
http://en.wikipedia.org/wiki/Terracotta_Army


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