Luo Pengpeng, a master of seal engraving art, delivers a speech during the opening ceremony of a seal engraving and calligraphy exhibition held at the China International Exhibition Center in Beijing, capital of China, Aug. 21, 2019. About 120 seal engraving and calligraphy works made by Luo Pengpeng, a master of the art, and her students were on display during the five-day exhibition, which kicked off here Wednesday. Chinese seal engraving was included in UNESCO's intangible cultural heritage l

Photo taken on Aug. 21, 2019 shows a seal engraving work displayed during an exhibition held at the China International Exhibition Center in Beijing, capital of China. About 120 seal engraving and calligraphy works made by Luo Pengpeng, a master of the art, and her students were on display during the five-day exhibition, which kicked off here Wednesday. Chinese seal engraving was included in UNESCO's intangible cultural heritage list in 2009. (Xinhua/Cui Bowen)

Visitors view seal engraving works printed on paper displayed during an exhibition held at the China International Exhibition Center in Beijing, capital of China, Aug. 21, 2019. About 120 seal engraving and calligraphy works made by Luo Pengpeng, a master of the art, and her students were on display during the five-day exhibition, which kicked off here Wednesday. Chinese seal engraving was included in UNESCO's intangible cultural heritage list in 2009. (Xinhua/Cui Bowen)

A visitor views seal engraving works displayed during an exhibition held at the China International Exhibition Center in Beijing, capital of China, Aug. 21, 2019. About 120 seal engraving and calligraphy works made by Luo Pengpeng, a master of the art, and her students were on display during the five-day exhibition, which kicked off here Wednesday. Chinese seal engraving was included in UNESCO's intangible cultural heritage list in 2009. (Xinhua/Cui Bowen)

A staff member stands beside calligraphy works displayed during an exhibition held at the China International Exhibition Center in Beijing, capital of China, Aug. 21, 2019. About 120 seal engraving and calligraphy works made by Luo Pengpeng, a master of the art, and her students were on display during the five-day exhibition, which kicked off here Wednesday. Chinese seal engraving was included in UNESCO's intangible cultural heritage list in 2009. (Xinhua/Cui Bowen)

A visitor walks past calligraphy works displayed during an exhibition held at the China International Exhibition Center in Beijing, capital of China, Aug. 21, 2019. About 120 seal engraving and calligraphy works made by Luo Pengpeng, a master of the art, and her students were on display during the five-day exhibition, which kicked off here Wednesday. Chinese seal engraving was included in UNESCO's intangible cultural heritage list in 2009. (Xinhua/Cui Bowen)

A visitor views seal engraving works displayed during an exhibition held at the China International Exhibition Center in Beijing, capital of China, Aug. 21, 2019. About 120 seal engraving and calligraphy works made by Luo Pengpeng, a master of the art, and her students were on display during the five-day exhibition, which kicked off here Wednesday. Chinese seal engraving was included in UNESCO's intangible cultural heritage list in 2009. (Xinhua/Cui Bowen)