high perforation depth -> perforation of a multilayer strong material in a predefined horizontal pattern possible
different axial layers and several sliding perforation units can be integrated
the risk of incorrect positioning is prevented by locking and interlocking of the sliding perforation unit
device width, number of perforation units, density of pins and pin size are freely selectable within the scope of technological and physical possibilities
the use of a grooved roller is almost wear-free
can be modified to the desired safety level after consultation