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 forthe provision of spacing elements, grip-enhancing elements,draining elements and the like, comprising an extrudedsheet-like element which has, on at least one face, aplurality of peduncles which are formed monolithically withthe sheet-like element during the extrusion thereof andhave a solid transverse cross-section.