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v3.22.1

Commitments and Contingencies (Details) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2022 USD ($) ft² | Mar. 31, 2022 CNY (¥) | Dec. 31, 2021 USD ($) | Dec. 31, 2021 CNY (¥) | Mar. 31, 2022 CNY (¥) ft²
Commitments and Contingencies (Details) [Line Items] |  |  |  |  |
Area of land (in Square Feet) | ft² | 32.95 |  |  |  | 32.95
Lease term | 30 years |  |  |  | 30 years
Lease expires date | Dec. 31, 2031 | Dec. 31, 2031 |  |  |
Annual rental payment | $ 18,903 |  |  |  | ¥ 120,000
Operating lease renewable term | 30 years |  |  |  | 30 years
Outstanding commitments | $ | $ 4,749,646 |  | $ 4,700,927 |  |
Long-term loan from financial institutions | $ 4,883,274 | ¥ 31,000,000 | $ 4,862,211 | ¥ 31,000,000 |
Minimum [Member] |  |  |  |  |
Commitments and Contingencies (Details) [Line Items] |  |  |  |  |
Expected term | 1 year | 1 year |  |  |
Maximum [Member] |  |  |  |  |
Commitments and Contingencies (Details) [Line Items] |  |  |  |  |
Expected term | 3 years | 3 years |  |  |
Hebei Fangsheng [Member] |  |  |  |  |
Commitments and Contingencies (Details) [Line Items] |  |  |  |  |
Lease term | 5 years |  |  |  | 5 years
Annual rental payment | $ 157,522 | ¥ 1,000,000 |  |  |

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