设备
Gymnastic Ring Stations
- 831
https://calisthenics-parks.com/cities/8540-zh-frederick-maryland-united-states-of-america/equipments/31-zh-gymnastic-ring-station
https://calisthenics-parks.com/cities/8540-zh-frederick-maryland-united-states-of-america/equipments/31-zh-gymnastic-ring-station
