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still for framstellning of a mikroporos, moisture angpermeabel film or laminate, by drying a permanent layer of a dispersion of a disperse phase - a hoggradigt svellt materials and a - - -
still for framstellning of a mikroporos, moisture angpermeabel film or laminate, by drying a permanent layer of a dispersion of a disperse phase - a hoggradigt svellt materials and a - - -