[Video by Zou Jianhui/Video planning editor Zhang Tingting] 

Changshan county in Quzhou, East China's Zhejiang province boasts traditional oil extraction skills that take advantage of abundant local tea-oil camellia resources. Changshan traditional wooden pressing mould oil extraction skills have a long history stretching back to the Ming Dynasty (1368-1644). 

The crude and unrestrained process of oil extraction is an inheritance of the hard-working, simple and generous residents in the mountainous area. In 2009, it was included in the third intangible cultural heritage list of Zhejiang province.