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Fairs with participation by Optigrün

Country    Town Event   Date    Organiser
Germany Berlin Word Green Infrastructure Congress WGIC 2017 Berlin 20 - 22 June 2017 Fachvereinigung
Bauwerksbegrünung e.V. (FBB)
World Green Infrastructure
Network e.V. (WGIN)
European Federation Green Roofs and Walls
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