The materials of traditional metal sculptures are mainly bronze, gold, and silver. The molding process is mainly casting, supplemented by surface processing techniques such as inlaying, engraving, and gold pasting. The inheritance is carried out in the manner of father and son or master and apprentice… Since the industrial revolution, people’s production methods and labor methods have undergone fundamental changes. In the past, the metal sculpture process, which tends to accumulate subjective experience and skills, has been more objective and more practical. Replaced by mechanized large-scale production processes, the molding methods mainly include welding, riveting, extrusion and digital printing, supplemented by more colorful surface processing processes, such as electroplating, mechanical polishing, sandblasting, and corrosion.