We developed MASFILA as a result of intensive R & D studies on our way to produce 3D printer fila-ment. By virtue  of our intensive  work on the forming mold  which is the most sensitive and challeng-ing  point of extrusion, we have achieved  over world-standard results in special design, production efficiency, ovality-diameter  tolerances and extrusion speed. Thanks to our pressure enhancers and stabilizers we achieved the tolerance of 0.05 mm diameter and 0.05 mm ovality in MASFILA filament lines.  In our MASFILA filament extrusion lines, the same diameter and ovality tolerance are resulted  in all ABS, PLA, PET, PETG, PP, PE, PVC products that have been tried so far.