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INVENTORIES (Tables)
6 Months Ended
Jun. 30, 2021
INVENTORIES [Abstract]  
Components of Inventory

The following table provides the components of inventories:

   
June 30,
2021
   
December 31,
2020
 
             
Raw materials
 
$
33,058,221
   
$
32,044,393
 
Work-in-process
   
49,163,125
     
30,293,288
 
Finished goods
   
17,478,397
     
19,197,918
 
Total inventories
 
$
99,699,743
   
$
81,535,599