The U.S. is the new place to go for low-cost manufacturing. As unlikely as it might seem, companies overseas are starting to get that image as they begin sending work to U.S. job shops. “Over the last six months, activity from the U.K. to the U.S. has picked up dramatically. Before that, it was insignificant,” says Mitch Free, owner of Mfg.com, a Web site for sourcing and selling manufacturing services. “We also see work coming back from Canada because the Canadian dollar now has a 28% disadvantage against the U.S. dollar. Canadian manufacturers who get contracts from the U.S. tell...