Sheet-like structure with surface protrusions for providing spacing, grip-enhancing, draining elements and the like

摘要

A sheet-like structure with surface protrusions for he provision of spacing elements, grip-enhancing elements, draining elements and the like, comprising an extruded sheet-like element which has, on at least one face, a plurality of peduncles which are formed monolithically with the sheet-like element during the extrusion thereof and have a solid transverse cross-section.