According to Netease News, there is no information showing whose grandson Li Tie is.
Li Tie, born in May 1977, is a snake from Shenyang, Liaoning. Li Tie's father is Li Chunrong, who graduated from Tianjin University. My mother's name is Wang Guiqin, and I graduated from University of Aeronautics and Astronautics. My brother's name is Li Jian, and he graduated from North China Electric Power University, which can be said to be a scholarly family.