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Inventories
12 Months Ended
Dec. 31, 2021
Inventory [Abstract]  
INVENTORIES
5. INVENTORIES

 

   As of December 31, 
   2021   2020 
Robots at warehouse  $1,387,160   $252,411 
Robots in transit   389    242,670 
   $1,387,549   $495,081 

 

No allowance for slow moving or obsolete inventory was recorded for the years ended December 31, 2021 and 2020.