IGM IG Metall Schilder. Zur traditionellen 1. Mai Demo versammelten sich 2021 in München Hunderte. Am Königsplatz warteten schon Tausende zu einer großen Kundgebung des Deutschen Gewerkschaftsbund - DGB. * IG Metall signs. Hundreds joined the traditional worker's day demonstration in Munich, Germany. At Koenigsplatz thousands were already waiting for them at the DGB rally.