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Property, Plant and Equipment, Net (Tables)
3 Months Ended
Oct. 31, 2022
Property, Plant and Equipment [Abstract]  
Schedule of property and equipment stated at cost less accumulated depreciation
   October 31,
2022
   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   (94,857)   (78,201)
Property and equipment, net  $264,184   $272,700