wang hongrui
@richard_w
China, shijiazhuang
Joined Aug 2022
World Rank: #9039 (3.9 points)
Institution: hebei
Activity over the last year
Effectiveness
- Problems solved
- 29
- Solutions submitted
- 62
China, shijiazhuang
Joined Aug 2022
World Rank: #9039 (3.9 points)
Institution: hebei