http://en.wikipedia.org/wiki/Chinese_armour
the article is very poorly unorganized. Other than having flat out wrong facts. there are alot of ambiguous statements made
-claims Liang dang armor was common during the Han dynasty. if i'm not mistaken, this sort of armor only became common Wei-Jin/NanbeiChao era
-claims brigandine style armor only came into existence in China relatively recently (IE Ming or Qing). I'm unclear on this since the Ming Guang Jia seems to be a transition from lammellar to brigadine.
-reference to crossbows used on horseback. no evidence of this sort of wide spread usage
-the ambiguous statement that iron was the most common metal for weapons in Han dynasty. While for the first 100 years or so of the dynasty, iron weapons were found along the typical bronze weapons. by at least the second half of the dynasty, steel was used. (numerous evidence including large furnaces for the process of siphoning carbon from cast iron to make steel as well as archeaological finds of steel swords dating to the second half of the Han dynasty)