A worker weighs the Babao red ink paste in Zhangzhou, southeast China's Fujian Province, Nov. 30, 2018. Made of many precious materials such as pearl, agate, coral and musk, Zhangzhou red ink paste has been favoured by painters and calligraphers both home and abroad for over 300 years. Its making technology was listed as the second batch of national intangible cultural heritages in 2008. (Xinhua/Wei Peiquan)