Casting is an operation that consists in extracting and pouring molten metal. At the GHM foundry, highly qualified workers carry the liquid mass at 2,550° F (1,400° C) in pockets and pour it into the mold through a cavity. When overflowing, the molten metal stops as the vent is turned on to release the gases. GHM workers endeavor to maintain a working tradition established by Antoine Durenne in 1857 on the very location of the current foundry. Over the years, the company acquired international renown and know-how.