... 1,Thermal insulation properties 2,High strength 3,Anti-aging 4,Fire-resistant Product namePVC ... tempered,reflective,coated,decorative,floated,Low-E glass etc.2) Thickness: single glazing /double glazing /triple glazing 4mm,5mm,6mm,19mm ... resistance: 3600 Pa4) Air permeability: 0. 5 m 3 /h. M5) Watertightness: 700 PaProduct features1) Air ... open out hinged mullion door with double frosted glass for shower