GGM Yeh Yu TingGGM Yeh Yu Ting GGM Yeh Yu Ting GGM Yeh Yu Ting Group 19651965 1965 1965 Chin NaChin Na Chin Na Chin Na SifusGrandmaster Raymond Wong (back row left), circa 1970 Grandmaster Raymond Wong (back row left), circa 1970 Grandmaster Raymond Wong (back row left), circa 1970 01UCI Demo 1988 UCI Demo 1988 UCI Demo 1988 02UCI Demo 1988 UCI Demo 1988 UCI Demo 1988 03UCI Demo 1988 UCI Demo 1988 UCI Demo 1988 04UCI Demo 1988 UCI Demo 1988 UCI Demo 1988 05UCI Demo 1988 UCI Demo 1988 UCI Demo 1988
