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Books about Chenghong:
ChengHong China fiber (from cotton). creative fashion remit 2014: CLS(Chinese Edition) by ZHONG GUO HUA XUE XIAN WEI GONG YE XIE HUI (Mar 1, 2014)
Wiki information Chenghong:
Li Chenghong, commonly known as the Prince of Guangwu, was an imperial prince of the Chinese Tang Dynasty who was briefly declared emperor in 763 by invading Tibetan forces after they had captured the Tang capital Chang'an.