Hang-chou

They are said to have been invented by the people of Hang-chou, the capital of Chekiang ; but it is quite possible that the hint may have first reached China from the west.

Source: wiktionary

Ju is an imperial ware of the Sung Dynasty, that takes its name from the district in Honan where it was first developed; the kiln site has not yet been firmly identified. The ware is generally believed to have been made for the Northern Sung court only from A.D. 1107 to 1127, the latter date coinciding with the enforced withdrawal of the court to Hang-chou in the south, as the result of the Chin Tartar invasion from the north.

Source: wiktionary

After moving about the area south of the Yangtze River for several years, the emperor settled the government in the city of Hang-chou in 1132.

Source: wiktionary

However, the late Hsia and the Shang were considerably warmer, possibly comparable to Hang-chou today, an area where bamboo proliferates.

Source: wiktionary