wang hongrui
@richard_w
China, shijiazhuang
Joined Aug 2022
World Rank: #7853 (4.5 points)
Institution: hebei
Activity over the last year
Effectiveness
- Problems solved
- 31
- Solutions submitted
- 67
China, shijiazhuang
Joined Aug 2022
World Rank: #7853 (4.5 points)
Institution: hebei