v3.25.2
Inventories, Net - Schedule of Inventories, Net (Details)
Jun. 30, 2025
CNY (¥)
Jun. 30, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Inventory, Net [Abstract]      
Raw materials ¥ 4,373,715   ¥ 11,064,697
Work in process 27,861,392   9,979,114
Finished goods 3,615,825   8,822,607
Inventories, net ¥ 35,850,932 $ 5,008,093 ¥ 29,866,418