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Inventory
 3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Inventory Disclosure [Abstract]    
INVENTORY

4. INVENTORY

 

Inventory consists of the following:

 

   March 31,
2022		   December 31,
2021		 
   (Unaudited)     
Finished goods  $104,036   $96,725 
Raw materials   69,287    84,620 
Allowance for inventory valuation and obsolescence loss   (150,623)   (155,370)
Inventory, net  $22,700   $25,975 

4. INVENTORY

 

Inventory consists of the following:

 

   December 31,
2021		   December 31,
2020		 
         
Finished goods  $96,725   $100,967 
Work-in-process   
-
    22,038 
Raw materials   84,620    61,718 
Allowance for inventory valuation and obsolescence loss   (155,370)   (184,723)
Inventory, net  $25,975   $
-