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Payables to Former Subsidiaries, net (Details) - Schedule of payables to a former subsidiaries, net - USD ($) | Sep. 30, 2021 | Dec. 31, 2020
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Payables to Former Subsidiaries, net (Details) - Schedule of payables to a former subsidiaries, net [Line Items] |  |
Payables to former subsidiaries, net | $ 361,874 | $ 626,990
Bak Tianjin [Member] |  |
Payables to Former Subsidiaries, net (Details) - Schedule of payables to a former subsidiaries, net [Line Items] |  |
Payables to former subsidiaries, net | 7,970 | 29,852
Bak Shenzhen [Member] |  |
Payables to Former Subsidiaries, net (Details) - Schedule of payables to a former subsidiaries, net [Line Items] |  |
Payables to former subsidiaries, net | $ 353,904 | $ 597,138

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