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Condensed financial information of the parent company (Details) - Schedule of parent company statements of cash flows - Parent Company [Member] - USD ($) | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Cash Flows from Operating Activities: |  |  |
Net Cash Provided by Operating Activities | $ (700,873) | $ 48,100 |
Cash Flows from Investing Activities: |  |  |
Investment in a subsidiary | (3,690,000) |  |
Net Cash Used Investing Activities | (3,690,000) |  |
Cash Flows from Financing Activities: |  |  |
Proceeds from issuance of common stocks in connection with initial public offering, net off issuance cost | 11,497,654 |  |
Net Cash Used Financing Activities | 11,497,654 |  |
Net increase in cash and cash equivalents | 7,106,781 | 48,100 |
Cash and cash equivalents at beginning of year | 48,100 |  |
Cash and cash equivalents at end of year | $ 7,154,881 | $ 48,100 |

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