In March 2024, our long-standing regular customer commissioned EBNER to manufacture a total of 3 spare tube bundles for preheaters. The 3 spare tube bundles are characterized by the special feature that they were manufactured in different material combinations compared to the usual standard material combination. This measure is intended to enable the customer to find the ideal combination of materials, that has been previously determined in tests, on a production scale. In accordance with the contract, the spare tube bundles were delivered at the beginning of January 2025.