The square statue, bronze ritual vessels and sacrificial articles of Siyang in the late Shang Dynasty. 1938 was unearthed at Zhuanlun hillside, Yueshanpu, Huangcai Town, Ningxiang County, Hunan Province. Collection of China National Museum.

Siyang Square Statue is the largest bronze square statue of Shang Dynasty in China, with a length of 52.4 cm, a height of 58.3 cm and a weight of 34.5 kg. It has a long neck, a round, towering neck. The four sides are decorated with banana leaf patterns, triangular letters and animal faces. The center of the statue is the center of gravity. The four corners of the statue are made of a sheep. The four corners of the shoulder are the heads of sheep with four rolled horns. At the same time, Fang Zun's shoulders are decorated with dragons with claws and high-relief snake bodies. In the middle of the statue, where two sheep are adjacent, a pair of horned dragons poked their heads out of the table and snaked out from the right shoulders on both sides of Fang Zun in the middle of the former residence.

According to the analysis of archaeologists, the statue of Fang Zun in Siyang was cast by the secondary casting process, that is, the horn and faucet were cast separately, then put into the outer mold respectively, and then cast as a whole. The whole object was cast by block method, which was accomplished in one go and showed a superb casting level. Known by historians as the "ultimate bronze model", it ranks among the top ten national treasures handed down from ancient times.