1. Universities with welding majors, such as Harbin Institute of Technology, Tianjin University, Beijing University of Technology, Beijing University of Aeronautics and Astronautics, Nanjing University of Aeronautics and Astronautics, Jiangsu University of Science and Technology, Shanghai Jiaotong University, China University of Aeronautics and Astronautics, north china university of technology, Tsinghua University, Xi Jiaotong University, Lanzhou University of Technology and Shandong University of Technology, have all signed up for adult education. 2. Most vocational and technical colleges in all provinces have welding majors.