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INVENTORIES (Tables)
3 Months Ended
Mar. 31, 2020
INVENTORIES  
Schedule of inventories, by component

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March 31,

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December 31,

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2020

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2019

 

Raw materials

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$

106,787

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$

111,653

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Work in process

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120,151

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123,750

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Finished goods

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144,921

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140,392

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Total

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$

371,859

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$

375,795

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