German Chancellor Angela Merkel (front C) and Polish Prime Minister Beata Szydlo (front R) visit the booth of Siemens during the Hanover Messe 2017 in Hanover, Germany, April 24, 2017. The Hanover Messe 2017, with the lead theme "Integrated Industry -- Creating Value" and Poland as the official Partner Country, will last until April 28. (Xinhua/Shan Yuqi)
