Inventories (Tables)

12 Months Ended

Dec. 31, 2021

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories consisted of the followings:

	As of December 31,
	2020		2021
	RMB		RMB
Finished goods		311,316		422,627
Raw materials		128,059		153,724
Inventories		439,375		576,351