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INVENTORIES
12 Months Ended
Dec. 31, 2020
Inventories  
INVENTORIES

6. INVENTORIES

 

At December 31, 2020 and 2019, inventories consist of:

 

    2020     2019  
Raw materials, parts and supplies   $ 1,188,616     $ 1,522,082  
Work-in-progress     1,923,426       534,937  
Finished products     261,809       424,492  
Total inventories   $ 3,373,851     $ 2,481,511