Since 1984, the German company UNICOR is one of the worlds leading manufacturer of corrugators for the production of single, double and triple wall pipes for all pipe sizes: from corrugated technical pipes with a diameter of 3 mm up to corrugated sewage and drainage pipes with a diameter of up to 1800 mm. Up to now, more than 1,100 corrugators of all sizes are running on all five continents.