1 of 2 A worker loads spools of thread Oct. 21 at the Repreve Bottle Processing Center, part of the Unifi textile company in Yadkinville. America has lost more than 7 million factory jobs since manufacturing employment peaked in 1979. Yet American factory production, minus raw materials and some other costs, more than doubled over the same span to an inflation-adjusted $1.91 trillion last year, according to the U.S. Commerce Department. That’s a notch below the record set on the eve of the Great Recession in 2007, and it makes U.S. manufacturers No. 2 in the world behind China.