Inventories, net (Tables)

12 Months Ended

Dec. 31, 2022

Inventory Disclosure [Abstract]

Schedule of Inventories, Net

Inventories, net consist of the following:

	As of December 31,
	2021			2022
	RMB			RMB
Raw materials		61,673,722			69,914,306
Work in process		115,246,904			158,693,203
Finished goods		63,703,393			81,807,783
Less: write-down of inventories		(26,753,768	)		(208,213,546	)
Inventories, net		213,870,251			102,201,746