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Keywords from Image Description:
Doppelwellpappe. Schematischer Aufbau von Doppelwellpappe own br de Sebastian Wallroth CommonsHelper br original text selbst erstellt Abtrix de Doppelwellpappe svg Abtrix Original upload log page de Doppelwellpappe Abtrix bytes ' Abtrix bytes no Beschreibung Schematischer Aufbau von Doppelwellpappe Quelle selbst