Feature with MTF conveyor belt in the "Sendung mit der Maus" (The Show with the Mouse)

The children's program "Die Sendung mit der Maus" reported on the production of plastic chairs for classrooms.
The plastic parts are transported via an MTF conveyor belt... See for yourself, it's shown several times starting at 3:22:

"The Show with the Mouse" - How is a school chair made?, WDR television, from October 11, 2023, on YouTube