The factory was founded in 1934 for the production of Hydronalium. It operated as magnesite works from 1947 to 1990. The refractory bricks are cooked in kilns at high temperatures up to about 1800 °C in order to create the crystalline magnesium oxide (MgO). The bricks were then used to coat blast furnaces, converters for steelworks and other furnaces, or thanks to their heat storage properties, used as accumulation cores. The remains of three such long kilns can be found in this hall.