... 3) 50 years life 4)GB/T8804-2004 white pvc profie for window factory 60mm casement , ... 80mm/88mm sliding , white color, double color co-extrusion and strip seal ... strength of stretching : 600KJ/m2 4) Color: white,double-colors and strip co-extrusion5) Standard: GB/T8814 ... America, Japan, Europe, Germany, French, Korea and son on8) 2.5mm thick visiual face meets the latest ...