Introduction to the Treasure Hall: The Treasure Hall mainly displays the honors of Changyu Company. One of the bronze medals records a passage from the inscription on the bronze corridor of the China Millennium Monument in Beijing, which records four major events in Chinese history in 1892. Changyu Company The founding of the company was recorded in the China Millennium Monument in Beijing as one of the four major events. Displayed here are medals, medals, trophies, certificates and other items obtained by the company since its establishment, as well as inscriptions from party and state leaders, as well as gifts from domestic and overseas manufacturers and friends.