Quarterly report pursuant to Section 13 or 15(d)

INVENTORIES (Details)

v3.20.2
INVENTORIES (Details) - USD ($)
Jun. 30, 2020
Dec. 31, 2019
INVENTORIES    
Raw materials $ 24,830,796 $ 33,381,806
Work-in-process 22,066,417 14,455,665
Finished goods 9,104,135 5,227,263
Total inventories $ 56,001,348 $ 53,064,734