Stitching the upper bar with a width of 120 mm details. Used to thicken and save facial material. Edge trimming of the ends of the lower bar is provided if the user needs it. The size limit is the same as for a regular part.
It is allowed to edge only the upper side of the part with an edge covering the thickness of the stitching and edging the bottom side with an edge covering the bottom side of the part.
