The GHM foundry in Sommevoire (Haute-Marne) specialises in the manufacture of castings ranging in size from a few grams to one tonne using sand casting. The flexibility of the manufacturing process allows for the production of prototypes, small and medium-sized series or even the remaking of replicas. Founded in 1857, the company has evolved over time through constant innovation. Today, it is recognised worldwide for the quality of its work and the finesse of its works of art. More than 20,000 tonnes of cast iron are produced each year in its factory.