As far as I know, there are at least 80 doctoral programs in machinery in China. Such as Huazhong University of Science and Technology, Shanghai Jiaotong University, Xi Jiaotong University, Tsinghua University, Beijing Institute of Technology, Harbin Institute of Technology, Zhejiang University, Beijing University of Aeronautics and Astronautics, Chongqing University, Dalian University of Technology, Jilin University, Hunan University, Northeastern University, Nanjing University of Aeronautics and Astronautics, Yanshan University, Shandong University, Central South University, University of Science and Technology Beijing, Northwestern Polytechnical University, Southeast University, Tongji University, Tianjin University, South China University of Technology.