HANOVER, April 25, 2016 -- German Chancellor Angela Merkel (R) and U.S. President Barack Obama visit Weidmueller Group's stand during their tour at 2016 Hanover industrial trade fair in Hanover, Germany, on April 25, 2016. More than 5,200 exhibitors from over 70 countries and regions attended the fair. (Xinhua/Zhang Fan)
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