Form CERT GERDAU S.A.

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GERDAU S.A. (NYSE: GGB) Delayed: 4.71 --0 (-0%)
Previous Close $4.71    52 Week High $3.95 
Open $4.71    52 Week Low $0.79 
Day High $4.71    P/E N/A 
Day Low $4.71    EPS $0.00 
Volume 736