At the Cooper Tire plant in Findlay, Ohio, Jack Hartley, who is 58, works a 12-hour shift assembling tires: pulling piles of rubber and lining over a drum, cutting the material with a hot knife, lifting the half-finished tire, which weighs 10 to 20 pounds, and throwing it onto a rack.
Lea el artículo completo en www.nytimes.com
