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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     $
-