v3.22.2.2
Accounts and notes receivables, net - Accounts receivable, net (Details)
¥ in Thousands, $ in Thousands
6 Months Ended
Jun. 30, 2022
CNY (¥)
Jun. 30, 2021
CNY (¥)
Jun. 30, 2022
USD ($)
Dec. 31, 2021
CNY (¥)
Accounts and notes receivables, net        
Notes receivable ¥ 7,474     ¥ 4,588
Accounts receivable 68,046     78,332
Less: allowance for doubtful accounts (35,104)     (34,969)
Accounts receivable, net 40,416   $ 6,034 ¥ 47,951
Write-off of bad debt allowance ¥ 135 ¥ 4,495