He toured a factory in northern Gaza that turns rubble into limited amounts of cement.
On Friday, he plans to fly to Pennsylvania to tour a factory to make the same point.
Mr. Obama toured a factory that makes wind turbines, listened to the financial worries of voters at town-hall-style meetings and stood atop a dusty road construction site.
President Obama unveiled a promising new theme on Friday when he toured a factory in Schenectady, N.Y., and began talking about the desperate need to foster competitiveness and innovation in the pursuit of American jobs.
He toured a factory that makes wind turbines, listened to the financial worries of voters at two town-meeting-style events and signed the economic stimulus bill before a cheering crowd.
Asked about the deal as he toured a factory on Monday, Osborne said Labour had failed to address tax avoidance and collect more tax when it was in office.
Over a five-day "Every Town Counts" bus tour through six swing states that is scheduled to wrap up on Tuesday, Mr. Romney's attempts at banter were on sometimes painful display as he toured a factory floor here; scooped chocolate chip ice cream in Milford, N.H.; and served pancakes at a Father's Day breakfast in Brunswick, Ohio.
Not long ago, Matou Baillergeau Goodwin, the Smithsonian's project director for the Hubble show, toured a factory in Northboro, Mass., where carpenters and metalworkers from a company called ProtoVision were building the displays: 11 exhibition stations that will present, among other things, large color photographs that the telescope has taken in its 10 years in outer space.
Palin grabbed the spotlight in Iowa several hours after President Barack Obama toured a factory in Bettendorf, in far eastern Iowa, and one day after Congresswoman Michele Bachmann announced she was seeking the Republican nomination in her Iowa hometown of Waterloo.
Putin traveled to one of Deripaska's plants in 2009 and publicly ridiculed the billionaire, likening him to a "cockroach" as they toured a factory town hit hard by the global economic crisis.
