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Inventories (Tables)
9 Months Ended
Nov. 30, 2022
Inventory [Abstract]  
Schedule of inventories
   November 30,
2022
   February 28,
2022
 
Raw materials  $151,593   $129,836 
Work-in-process   6,644    14,421 
Finished goods   10,522    
-
 
Total inventory  $168,759   $144,257