The registered trademark of Huaxin Ejiao is "Ayun". Antique trademarks show the rich cultural heritage of Huaxin Pharmaceutical, which also contains a beautiful folk custom, further proving the purity of materials and technology of Huaxin Ejiao.
According to legend, during the Spring and Autumn Period, Confucius traveled around the world, passing through the imitation mountain (now 5 kilometers north of Dingtao City), and there was a valley between the two peaks, which was later called "Agu". The valley is full of flowing water and green grass, just like a fairyland on earth. Confucius stopped to watch, but he did not want to go home. But in the scorching sun, in order not to sweep the elegance of Confucius, the gods took a few colorful clouds and put them over the valley to keep out the scorching sun. "The valley stops the clouds" comes from this.
According to Li Daoyuan's Notes on Water Classics in the Northern Wei Dynasty, the ancient water flows through Dingtao into two streams, one of which flows eastward into Jining, the other northward into the Yellow River, and the langxi River is in its northern branch. Authentic Ejiao not only adopts traditional technology, but also has strict regulations on the water used to make Ejiao. According to ancient records, the best Ejiao should be langxi River. According to later research, Agu's water lives in the upper reaches of Jigu water. Shandong Huaxin Pharmaceutical Co., Ltd. selects the first-class glue and high-quality pure donkey hide from the upper reaches of Ji Gu, inherits the classic glue-making technology for more than 2,000 years, and combines modern production equipment and advanced and complete quality control system to produce "Agu Ting Yun" brand high-quality pure donkey-hide gelatin, tortoise-shell glue and antler glue, which have won numerous awards in many domestic competitions and are well received by consumers.