Wu Yuanxin (far left), curator of the Nantong Blue Calico Museum, explains the patterns on a piece of blue calico to visitors on Dec 14. A total of 13 Russian students from the Economics and Management School of Nantong University visited the museum that day to learn about the intangible cultural heritage item. [Photo/ntfabu.com]

A student tries his hands at weaving cloth at the Nantong Blue Calico Museum on Dec 14. This year marks the 70th anniversary of the establishment of diplomatic ties between China and Russia, and a variety of cultural exchange activities are being held for Russian students in Nantong. [Photo/ntfabu.com]