Which university is stronger, refrigeration or cryogenic engineering?

1. Department of Refrigeration and Cryogenic Engineering, Beijing University of Technology

2. School of Civil and Refrigeration Engineering, Harbin University of Commerce

3. Department of Refrigeration and Cryogenic Engineering, Northeastern University

4. Department of Refrigeration and Cryogenic Engineering, Tianjin University

Now many universities have majors in refrigeration and cryogenic technology. I hope it will help you.