Business description of ARMSTRONG-WORLD-INDUSTRIES-INC from last 10-k form

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ARMSTRONG WORLD INDUSTRIES, INC.

(Registrant)

By:   /s/ Matthew J. Espe
  Chief Executive Officer and President
  Date: February 27, 2012
By:   /s/ Matthew J. Espe
  (Matthew J. Espe)
  As of February 27, 2012
By:   /s/ Thomas B. Mangas
  (Thomas B. Mangas)
  As of February 27, 2012
By:   /s/ Stephen F. McNamara
  (Stephen F. McNamara)
  As of February 27, 2012