双欣环保:公司目前已建设PVA光学膜、PVB功能性膜项目
Group 1 - The company, Shuangxin Environmental Protection, has developed PVA optical film and PVB functional film projects, indicating a focus on advanced material production [2] - PVA optical film is a core material for polarizers, with applications in consumer electronics, automotive, and medical devices [2] - PVB functional film serves as an intermediate adhesive layer in laminated safety glass manufacturing, applicable in automotive, high-rise buildings, aerospace, and marine industries, and also functions as a key encapsulation material for photovoltaic components [2]