kaynak:[1] GERDAU S.A. - KONSOLİDE BİLGİLER (https://finance.yahoo.com/news/gerdau-consoli ...)[2] GERDAU S.A. - KONSOLİDE BİLGİLER - Nasdaq (https://vertexaisearch.cloud.google.com/groun ...)[3] GERDAU S.A. - KONSOLİDE BİLGİLER - PR Newswire (https://vertexaisearch.cloud.google.com/groun ...)