The welding specialty of Lanzhou University of Technology ranks the fourth among all universities in China, second only to that of Harbin Institute of Technology, Xi Jiaotong University and Tianjin University. There are many graduates majoring in welding in major state-owned enterprises in China. He used to be the welding engineering department of Gansu University of Technology. The most noteworthy is Professor Chen Jianhong. When I was at school, he was the president of Polytechnic University. The pride of the welding department of our University of Technology is famous all over the world. He studied in many countries, and the welding laboratory also had some top equipment sent from abroad at that time.