... strength 3,Anti-aging 4,Fire-resistant Product namePVC single swing in doors with double glazingProfile colourWhite,Ashy,Brown,Double colour ... / m2. K3) Wind resistance: 3600 Pa4) Air permeability: 0. 5 m 3 /h. M5) Watertightness: 700 PaProduct features1) Air proof,Water ... Show:2012 Exhibition:Samples Room: Woodgrain UPVC exterior single leaf swing hinged door with double obscured glass