That is, the Chinese bronze age, including Xia, Shang, Western Zhou, spring and autumn and the early Warring States period, lasted for more than 1600 years. Bronze ware of this period is mainly divided into ritual musical instruments, weapons and miscellaneous weapons. Musical instruments are also mainly used in the sacrificial activities of the ancestral temple. The picture shows the bronze owl head lifting beam pot in the early Eastern Zhou Dynasty, which was held by LV mozhai (Zhiqiang), the successor of lifelong single Japanese famous doctor Ichiro mori, and operated by Japanese legendary antique dealer Sakamoto Wulang. This bronze is a private collection, and according to the legitimacy, bronze is one of the most recognized plates by senior collectors, but bronze is a precious cultural relic. The state has formulated a series of policies and regulations to protect it and strictly controlled the circulation of bronze. There are two kinds of bronzes that can be legally circulated in the market: bronzes unearthed before 1949, spread orderly and supported by clear descriptions; Bronzes returned from overseas. Therefore, bronzes have been tepid in the domestic market, mostly in private transactions, and Chinese collectors have only entered the international auction circle for about five years. It generally refers to the period from the late Warring States period to the late Qin and Han Dynasties. The traditional etiquette system has completely disintegrated, and iron products have been widely used.