Visitors watch a so-called "Wan Gong Jiao", which means a sedan costed around 10,000 labours to make, during the 1st China National Non-Material Cultural Heritage Exhibition in Hangzhou, east China's Zhejiang Province, Sept. 17, 2009. The exhibition, which opened on Thursday, attracted nearly 600 items of non-material cultural heritage at provicinal level. [Zhu Yinwei/Xinhua]