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Keywords from Image Description:
NWOMolchRisspruef. en Leak detection pig the electronic leak noise recording unit is inserted in the middle of the pig carriage de Lecksuchmolch die elektronische Leckgeruschaufzeichnungseinheit wird mittig in das Fahrgestell eingesetzt own Wilfra Photo taken at and with kind permission by de NordWestOelleitung Pipeline transport