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Gerdau S.A. - Form 20-F

Gerdau S.A.  (GGB) 
US:NYSE Investor Relations: ri.gerdau.com/?idioma=enu
PDF SÃO PAULO, April 27, 2020 /PRNewswire/ -- GERDAU S.A. (NYSE: GGB; B3: GGBR3, GGBR4) hereby announces that the Form 20-F related to the fiscal year ended December 31, 201 [Read more]