The ancients said: The best way to study history is by writing. It can capture the shapes of all things and order the feelings of nature, which is the will of the saints. It cannot be expressed without writing. It is indeed a great tool of heaven and earth. In the 33rd year of Emperor Kangxi's reign (1694 AD), Zhou Huchen opened Zhou Huchen Pen and Ink Shop in Suzhou. After Shanghai opened as a port, in the first year of Emperor Tongzhi's reign (1862 AD), the pen and ink shop moved from Suzhou to No. 68 Xingsheng Street, Shanghai. In 1958 and 1964, Zhou Huchen Pen and Ink Shop merged nearly ten pen and ink shops in Shanghai to form the Old Zhou Huchen Pen and Ink Shop, which was located at No. 90 Henan Middle Road. In 1987, Shanghai Old Zhou Huchen Pen Factory was established, with the factory address at No. 136 Rushan Road. Zhou Huchen has integrated the three major brush-making techniques of lake brushes, water brushes, and calligraphy and painting brushes, and integrated the brush-making techniques of southern my country. He created the Shanghai-style brush, which made the Shanghai-style brushes and Shanghai-style calligraphy and painting coexist. He is a true Shanghai-style brush-making master in the history of modern Chinese brush-making. After the founding of New China, Zhou Huchen integrated the brush-making techniques of many schools, and when concentrated on production, he also played the strengths of each school, so that my country's "lake-water famous brushes" have achieved rapid development. On the basis of inheriting traditional craftsmanship, he continuously innovated the brush-making techniques, from making wolf-hair water brushes to making wolf-hair calligraphy and painting brushes, integrating the essence of traditional brush-making techniques. Zhou Huchen has been passed down for eleven generations for more than three hundred years, pushing the Chinese brush-making techniques to a new height. Brush-making techniques are an excellent traditional handicraft in my country. Common animal hairs used to make brushes include goat hair, weasel tails, mountain rabbit hair, Huai rabbit hair, etc. The requirements for selecting hair when making pens are very strict. It is said that "one hair is selected from thousands of hairs". The production skills are very complicated and delicate. There are six major processes from selecting hair to engraving, and 79 processes such as washing, soaking, pulling, combing, and connecting. Each process has a process standard, especially the water basin process. The production techniques of its calligraphy and painting brushes are divided into "waist-strengthening method", "top-aligning method" and "tail-tip method", which are unique in the pen-making industry. Zhou Huchen once made "longevity pens" for Emperor Kangxi of the Qing Dynasty; made "imperial pens" for Emperor Qianlong; made customized pens for calligraphers and painters; made "national gift" pens for Chinese leaders when they visited Japan; and made "dragon and phoenix pairs of pens" for the Olympic Games. During the Guangxu period of the Qing Dynasty, the first generation of brand brushes represented by the wolf-hair water pen "Five Tigers" was created. During the Republic of China period, the second generation of brand brushes represented by the sheep-hair pen "Yulan Rui" and the mixed-hair pen "Seven Purples and Three Sheep Hair" were created. After the reform and opening up, the third generation of brand brushes was created, represented by the wolf-hair brush "Lanzhu". The inheritors have devoted their life to the development of Chinese calligraphy and painting tools, adding precious wealth to the motherland's stationery treasures. Zhou Huchen's products and skills have a wide market and good reputation not only in China, but also in Japan, South Korea, Hong Kong, Southeast Asia and other places. In 2008, sales of 3 million yuan ranked first in China's brush industry. Zhou Huchen's brushes not only have practical value, commemorative and collection value, but also show the cultural value of its national handicrafts. Its production skills are intangible cultural heritage and have the value of inheritance and protection.