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process for the production of feinzelligen geschaeumten formkoerpern from thermoplastic plastics by extrusion of a mixture of a thermoplastic plastic material, a foaming agent and a porenregler niedrigsiedenden
process for the production of feinzelligen geschaeumten formkoerpern from thermoplastic plastics by extrusion of a mixture of a thermoplastic plastic material, a foaming agent and a porenregler niedrigsiedenden