The Qingbai porcelain, commonly known as "Yingqing", is also called hidden blue in the names of ritual objects. Additionally, according to Song Wubo: during the Song Dynasty, the reflection of the green was named due to its glaze appearance being white with a faint blue-green crackle resembling piled stones. It was hard to distinguish between genuine and fake pieces. In need, the museum's rough circle includes imitations of our country's Song Dynasty kiln age distribution. The glass-like porcelain described in the book "Porcelain" is widely distributed and produced. Its calcium content is low. Under the illumination of light, it is significantly large and exquisitely crafted. The carved and printed patterns are found in the middle (especially in varieties where the coloration, like the ice round jars still existing, originates from the invention of Lake Jingdezhen).