These two brands are good, and now the quality of domestic brands is also very good. For example, the products of CSG that our company has cooperated with are good. CSG is the only enterprise in China to realize mass production of high-alumina glass. Its products are ultra-white, ultra-transparent, super-strong and low-expansion, which are widely used in consumer electronics, touch screens, automobiles, high-speed rail and smart homes, breaking the monopoly of Corning and Asahi Glass on the domestic market.