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Revenue (Details) - USD ($)
3 Months Ended 9 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2019
Mar. 31, 2018
Net sales $ 12,715 $ 161,781 $ 104,039
Sales-parts - Related Party [Member]        
Net sales     $ 161,781 15,158
Royalty Revenue [Member]        
Net sales       83,506
Service revenue [Member]        
Net sales       $ 5,375