It takes several years of learning and practice, especially for the restoration of statuary, bandstands and monumental fountains, or smaller ones, such as the Wallaces, which adorn parks and gardens. The moulder calculates his joint plan, works with silica sand mixed with resin, and creates casting channels and vents for the gas outlet. The products of French art foundries are known for their reliability throughout the world. Thanks to this reputation, GHM foundry has installed a monumental fountain in a large Chinese factory.