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Inventories (Tables)
12 Months Ended
Dec. 31, 2024
Inventory Disclosure [Abstract]  
Schedule of inventories
Inventories consisted of the following:
As of December 31,
20232024
RMBRMB
Raw materials90,882 177,528 
Work-in-process11,003 18,568 
Finished goods58,896 37,846 
Total160,781 233,942