Loess, sand, soil, gypsum, bamboo tendons, etc. Wang Clay Sculpture, an intangible cultural heritage project in Yinchuan, takes loess and sand as the main raw materials to increase the toughness and ductility of clay sculpture. Soil is an adhesive, which is used to mix all kinds of raw materials together; Gypsum is a kind of material used to make molds, and molds of various shapes can be made. Bamboo tendons are used to strengthen the skeleton of clay sculpture and make it more stable.