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Selling Expenses (Tables) | 12 Months Ended
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Dec. 31, 2020
Selling Expenses [Abstract] |
Schedule of selling expenses |
|  | Year ended December 31, |
|  | 2020 |  |  | 2019 |  |  | 2018 |
Salaries and social welfare |  | $ | 58,915 |  |  | $ | 761,774 |  |  | $ | 1,765,019 |
Travelling expenses |  |  | 1,256 |  |  |  | 34,244 |  |  |  | 170,931 |
Service fee |  |  | - |  |  |  | 12,369 |  |  |  | 41,437 |
Advertising & promotion |  |  | 27,908 |  |  |  | 19,811 |  |  |  | 56,259 |
Entertainment fee |  |  | 3,377 |  |  |  | 4,848 |  |  |  | 42,656 |
Office expense |  |  | - |  |  |  | - |  |  |  | 1,960 |
Others |  |  | 364 |  |  |  | 2,224 |  |  |  | 4,567 |
Total Selling expenses |  | $ | 91,820 |  |  | $ | 835,270 |  |  | $ | 2,082,829 |

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