It was produced in Shang and Zhou Dynasties, and it was a sculpture with copper as the embryo, which was carved and cast. The art of bronze sculpture mainly expresses the beauty of modeling, texture and ornamentation, and is mostly used to express mysterious and daunting religious themes. Generally, the production of bronze carvings has to go through several important processes, such as metal smelting, forging, carving, gold plating, polishing and red paint. The process is complex and the technology is very elegant.