Yunnan is the kingdom of nonferrous metals

Yunnan is the "non ferrous metal" Kingdom, tin is all old, even only through the foreign railway of Yunnan and Vietnam has a continuous link with the "tin".
Impression, no tin, no industry, depending on a city has been destroyed.
But the old has not become the waste City, the tin is still shocked by the humanities.
Every spring, next to the old town, there is a Yunnan, the largest and most beautiful pear Village in China, to attract people's attention.