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Property, Plant and Equipment, Net (Tables)
6 Months Ended
Dec. 31, 2019
Property, Plant and Equipment [Abstract]  
Schedule of property, plants and equipment

    December 31,
2019
    June 30,
2019
 
    (unaudited)        
Machinery and equipment   $ 822,845     $ 783,426  
Transportation equipment     3,928,215       3,983,361  
Office equipment     1,129,025       1,121,186  
Buildings and improvements     484,328       491,127  
Construction-in-progress     -       74,659  
Total     6,364,413       6,453,759  
Less: Accumulated depreciation and amortization     (5,316,796 )     (4,794,239 )
Property, plant and equipment, net   $ 1,047,617     $ 1,659,520