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Inventories (Tables)

12 Months Ended

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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