Self-cleaning high-performance air release vents made of sintered stainless steel alloy with a 0.2mm wave slot.

Anfang 2024 hat die Ludwig Föbus GmbH & Co. KG die alteingesessene Düsenmanufaktur Fa. Zimmermann aus Lahnau, mitsamt dem gesamten Maschinenpark übernommen.

The "Föbushot", formerly known as Unitube, was further developed in collaboration with several renowned Cold-Box core manufacturers through long-term testing with newly used plastics