瑞华泰：公司PI薄膜产品已用于多款主流折叠屏结构保护，营收占比较小

Group 1 - The company Ruifeng (688323.SH) has indicated that its PI film products are used in several mainstream foldable screen structures, although the revenue contribution from these products is relatively small [1] - An investor inquired about the specific foldable screen phones from Huawei that utilize the company's products, as well as other brands in which the company's products have entered the supply chain [3] - The investor also asked whether there has been a significant increase in the sales of the company's products in the foldable screen segment this year [3]