Professor LIU Cai, doctoral tutor, Ph.D of University of Birmingham UK, expert on the State Council special allowance. Served as Vice President of Metallurgy Society, President of Invention Association and other community organizations of Hebei Province. Professor Liu Cai has undertaken more than 20 research projects, including National Natural Science Foundation Projects, and won over more than 10 national and provincial science and technology awards. Also cooperated with Shanghai Baosteel Group and a number of other companies to complete a number of scientific research projects. He has published 250 articles, referenced by the international journal papers over 400 times. Professor Liu Cai has supervised more than 30 PhD students , many of whom are academic leaders in universities. Professor Liu Cai was awarded "Outstanding Returned Overseas Student in Hebei Province" in 2009.