What are the calligraphy characteristics of Chu Suiliang, one of the four masters in the early Tang Dynasty?

Chu Suiliang (596 ~ 659) was born in Yangzhai (now Yuxian). Official to the secretariat, named Henan County Duke, one of the four outstanding figures in the early Tang Dynasty. According to legend, after Yu Shinan's death, Emperor Taizong lamented that no one talked about books. Wei Zhi recommended: "Sui Liang wrote hard and won a little body for Wang Yi." So he is called a librarian. Chu Suiliang is very particular about brushwork, and he put forward the famous "cone painting sand". He is good at writing with a pen. Some people describe his writing as "an inch from the paper". His handwriting is rich and fluent, which is very attractive compared with Europe and Yu. However, his handwriting is still very strong. His masterpiece is Preface to the Wild Goose Pagoda. After this tablet was carved, it spread for a period of time and had a great influence on later generations. His ink has large fonts, such as Yin Fu Jing.