Da Baiyun can write in Chinese calligraphy. Because its outer layer is wool and the middle part is hard and stiff, it can contain water and be elastic.
The great white cloud is centered on hard hair and surrounded by soft hair, and its brushwork is between hard hair and soft hair. Generally, purple wool and sheep wool are made in different proportions. For example, "three purple and seven sheep", "seven purple and three sheep" and "five purple and five sheep" and so on. There are also doubled both brush pens made of sheep hair and wolf hair.
according to the size, it can be divided into "little white cloud", "Middle Baiyun" and "Big Baiyun". There are also bristles added to the big sheep hair bucket pen to enhance its elasticity. Xiaobaiyun practices words such as ritual tablets, which are three centimeters square, while the middle Baiyun practices Zhang Qianbei. If the words are written four to five centimeters square, Dabaiyun can practice seal script copybook, and it is not difficult to write seven centimeters square.
Expanding information:
It is said that the writing brush was created by Meng Tian, so Houdian in Hengshui, Hebei Province and Shanlian in Huzhou, Zhejiang Province, which are so far known as the hometown of writing brushes, are packed every third day of the third lunar month, just like the Chinese New Year.
Since the Yuan Dynasty, the "Hu Pen" produced by Shanlian Town, Huzhou City, Zhejiang Province has become the most famous brush variety in China. Brush has different names in past dynasties. In the Spring and Autumn Period and the Warring States Period, the princes were the heroes. At this time, countries have different names for writing brushes. Wu (now Jiangsu) is called "Unlawful", and Chu (now Hubei) is called "Bamboo". After Qin Shihuang unified China, they were all called "writing brushes".
Baidu encyclopedia-writing brush