In 2023, a heat treatment furnace with a retractable trolley was designed and delivered to AO "PTFK ZTEO." The main purpose of the heat treatment furnace is thermal processing, such as annealing welded structures and castings. The loading capacity is 25 tons. The nominal temperature is 1100°C. In early 2024, installation and commissioning work were conducted. The equipment was put into operation in March 2024.