Zhenghe, a mountain town in northern Hebei, the ancient county name Guanli, more tribute tea - bud tea. Bud tea is the government and white tea silver needle. During the Song Zheng and the years, Huizong drank the silver needles selected by Guan Li County. Long Yan Xi moved and gave the name of the county to Guan Li as the county name.

Oolong tea was a semi-fermented tea that was first created in Fujian during the Ming and Qing Dynasties. In the early 19th century, the production of oolong tea was also extended from Fujian to East Guangdong and Taiwan. Fujian Oolong tea products have their own quality characteristics, subdivided into Yubei Narcissus, Yubei Oolong, Weinan Tieguanyin, Weinan Color, Wuyi Rock Tea and Anxi Tieguanyin.