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The sand casting process is an ancient casting technique which is characterized by its ability to produce products with intricate and complex patterns, as well as high accuracy. The sand casting process involves both technical skills and a rich cultural heritage.

Since ancient times, the sand casting process has been widely used in the production of various utensils such as clockwork, ceremonial objects, and stationery. In traditional Chinese culture, sand casting is an important form of art and craft. It is often combined with carving, painting, and handicrafts to create treasures in Chinese traditional art.

It is worth mentioning that the sand casting process in China has already developed a world-renowned reputation and has had a broad impact on the casting industry worldwide. According to historical records, the Baobao Bureau created by Ming Chengzu in the Ming Dynasty was skilled in sand casting and produced beautiful jade objects. Chongwen Shuyuan in Nanjing, the capital city, was also known as the "land of sand casting" and it was the sand casters who generously held silver.

The sand casting process is also widely used in modern industrial fields such as producing highly complex-shaped and accurate metal components such as engine parts, car gears, turbine blades, and aviation and aerospace equipment. In these applications, sand casting has superior advantages over other well-known casting techniques: improving production efficiency, reducing product damage, and reducing production costs. At the same time, sand casting can meet customized demands, produce more refined shapes and provide better product quality.

Therefore, from both cultural and technological perspectives, the sand casting process not only brings spiritual enjoyment but also plays an extremely important role in modern industrial fields.