... : White oak, teak, pine, larch, etc.Glassdouble toughened glass, triple insulating glass, Low-E glass, coated glass, frosted glass, shot-proof ... ....HardwareGerman hardware: Roto, Siegenia, G-U.Heat insulating stripimported nylon PA 66 from GermanSealing joint stripEPDM( corrosion resistance, heat resistance, oxidative resistance)Surface ...