Not bad. Yu Yilong started to establish a chain organization "Yu Yilong Hard Pen Calligraphy Training" in 2004. Edited and published textbooks such as Yu Yilong's Pen Copy and Xi Zhilong's Anthology. 20 1 1, Zhuhai Xizhilong Culture Communication Co., Ltd. was incorporated. 20 12 registered and established "Zhuhai Yuyilong Network Technology Co., Ltd." and "Zhuhai Yuyilong Culture Communication Co., Ltd." to create "Yuyilong Network". 2065438+June 2003 "Yu Yilong. Com was completely revised and upgraded for the first time. From September 2065438 to September 2003, hard-pen calligraphy education began in Beijing.