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Inventories (Tables) | 12 Months Ended
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Dec. 31, 2020
Inventories |
Schedule of inventories |
|  | December 31, 2020 |  | December 31, 2019
Finished products |  | 2,626 |  | 2,604
Work in progress |  | 647 |  | 767
Consumable inventory |  | 788 |  | 903
Total |  | 4,061 |  | 4,274
Schedule of reversal (provision) for net realizable value |
|  | Year ended December 31,
|  | 2020 |  | 2019 |  | 2018
Reversal (provision) for net realizable value |  | 3 |  | 24 |  | (4)

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