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Short-Term Loans (Details Textual) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2019 | Mar. 31, 2018
Short-Term Loans (Textual) |  |  |  |
Interest expense | $ 52,479 | $ 28,519 | $ 83,851 | $ 98,017
Weighted average interest rate | 5.15% | 5.85% | 5.50% | 5.79%

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