... by a Hong Kong based t'ai chi ch'uan master known as Cheng Tin hung. While Cheng Tinhung ... name "Wudang" used for this T'ai chi ch'uan system was used in order to acknowledge Zhang Sanfeng' ... of self-defense.The Wudang t'ai chi ch'uan system teachers publish that they have links to famous ... T'ai chi ch'uan masters (see lineage diagram), including Yang Banhou, Wu Quanyou ...