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Glass beer bottles move down a conveyor belt at the Owens-Illinois Inc. glass manufacturing plant in Waco, Texas, U.S., on Thursday, Aug. 4, 2011. Owens-Illinois Inc., the world’s largest glass container manufacturer, delivers safe, effective and sustainable glass packaging solutions to a growing global marketplace. Photographer: Mike Fuentes/Bloomberg via Getty Images

Glass beer bottles move down a conveyor belt at the Owens-Illinois Inc. glass manufacturing plant in Waco, Texas, U.S., on Thursday, Aug. 4, 2011. Owens-Illinois Inc., the world’s largest glass container manufacturer, delivers safe, effective and sustainable glass packaging solutions to a growing global marketplace. Photographer: Mike Fuentes/Bloomberg via Getty Images