Started from 19 1 1 year, it is the oldest oral care brand in China, and has created many firsts in the history of toothpaste in China. It has the world's most advanced complete toothpaste production technology and equipment, as well as a scientific product quality management system. Over the past century, Blue Sky has been aiming at the oral problems of China people, inheriting the century-old oral care technology and taking care of oral health professionally. With "Blue Sky" and "Six Rules" two well-known trademarks in China.