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Yellow pieces of plastic can be seen at the stand of  Protec Plastics at the Hanover Fair 2017 in Hanover, Germany, 24 April 2017. The world's biggest industry trade fair will see some 6500 exhibitors from the 24th to the 28th of April. The partner nation of this year is Poland. Photo: Friso Gentsch/dpa /MediaPunch ***FOR USA ONLY***