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Property, Plant and Equipment, Net (Tables)
6 Months Ended
Jan. 31, 2023
Property, Plant and Equipment [Abstract]  
Schedule of property and equipment stated at cost less accumulated depreciation
   January 31,
2023
   July 31,
2022
 
   (unaudited)     
Furniture, fixtures and equipment  $226,371   $218,231 
Vehicles   132,670    132,670 
Total   359,041    350,901 
Less: accumulated depreciation   (111,512)   (78,201)
Property and equipment, net  $247,529   $272,700