sentences:  "Mao Gong Ding" (Cauldron of Duke of Mao) of the late Western Zhou Dynasty (1046–771 BCE) carries the longest Chinese bronze inscriptions so far extent.With 21 pieces out of fewer than 80 surviving, the museum has the world's largest collection of Ru ware, one of the rarest Chinese ceramics, made exclusively for the court and one of the Five Great Kilns of the Song Dynasty (960–1279), along with Ding porcelain, Jun ware, Guan and Ge; the museum has major collections of all of these.Those from the official kilns of the Ming (1368–1644) and Qing (1644–1912) dynasties, such as the "doucai" porcelains of the Chenghua reign in the Ming Dynasty and painted enamel porcelains from the early Qing, are also of excellent quality.