Technical Infomation Testing and Certification, Product Performance, Design and Evaluation, Further Protection, and Fire Certification Powershield Glazing is made of steel profiles which are perfectly cut and welded. This production method makes it possible to obtain all sizes and to use various subdivisions (muntins): horizontal, vertical and diagonal. Design and Evaluation We offer a comprehensive range of high quality glazed door to suit almost any application. All of our products are supported by a team of professionals, offering our clients technical solutions and assistance at each stage of their projects from concept to completion. Fire Certification Glazed doors FD30, FD60, EI 30, EI60.