Tiet Sien Kuen (Iron Wire Fist): Developed by Tiet Kiu Sam, a member of the Kwang Tung Sup Fu, (Ten Tigers Of Canton) Tiet Sing Kuen is the most advanced form in Hung Ga. The form trains the body to open and close and to float and sink. Most importantly, this form develops the Twelve Bridges and the correctness of breath.