双欣环保：目前公司产品PVB功能性膜可以用于汽车、高层建筑、航空、航海等领域

Core Viewpoint - The company, Shuangxin Environmental Protection, has clarified its current product applications and market focus, specifically regarding its PVB functional film used in laminated safety glass manufacturing [1] Group 1: Product Applications - The PVB functional film is primarily utilized as an intermediate adhesive layer in the production of laminated safety glass [1] - This film can be applied in various sectors, including automotive, high-rise buildings, aerospace, and maritime industries [1] Group 2: Business Relationships - Currently, the company has not established any partnerships with commercial aerospace enterprises [1]