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Bank Loans (Details) - USD ($) | Mar. 31, 2020 | Dec. 31, 2019
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Cathay United Bank [Member] |  |
Total | $ 248,250 | $ 250,500
CTBC Bank [Member] |  |
Total | 662,000 | 668,000
Cathay Bank [Member] |  |
Total | $ 1,000,000 | $ 1,000,000

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