First line. The main characteristics of first-line brands are high brand awareness, high gold content, excellent high-end products, strong brand research and development capabilities, rapid introduction of new products and complete product lines. Guangdong Zhongyan New Materials Technology Co., Ltd. was established on September 20 16 19. It owns brands such as First Xingyan, Chuangwu, Seratu and Yi Yan One World. More than 2,000 mu of intelligent production base has been established in Enping, Guangdong, and a number of slate processing plants have been invested. It is a slate production enterprise integrating research and development, production, sales and processing of slate.