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Intangible Assets (Details 2) - Technology Patent [Member] - USD ($)
Mar. 31, 2019
Jun. 30, 2018
Finite-Lived Intangible Assets [Line Items]    
Technology know-how $ 2,251,081 $ 2,276,335
Less: accumulated amortization (2,251,081) (2,276,335)
Total technology know-how, net