"It is beneficial to send ink, slip without driving, astringent without stagnation, and unstable ink storage".
Shu Tong, Chairman of China Calligraphy Association, wrote an inscription: "Songhua River inkstone, Duanyan Hui Qi".
Zhao Puchu, a famous calligrapher, once wrote a poem praising: "Color deceives pottery, stone wind is green, and the Songhua River is magical in Shui Han".
Fu Dalu, a connoisseur of cultural relics, praised: "The Taohe River has no such embellishment, and Duan Xi has no such firmness."