1.Frame Thickness:1.4mm;Sash Thickness:1.4mm;Out-frame:90mm width2.Glass Sash:Outside opening;Gauze Sash:Inside opening3.Hardware Slot:European Standard Design,could match any standard accessories4.This system design with three cavity to meet the requirement of energy-saving,and it always use the wood grain on the indoor and other surface treatment on the outdoor part.5.Frame&Sash connected by angle connector and cut in 45°.6.Glass slot:28mm;could install with 6mm+12A+6mm tempered glass7.The distance of window and gauze is 22.2mm,could install the sharp handle8.Depending on the wall thickness,it could install the covered inside or outside and both.9.1.5m X1.5m standard window:15.5kg/m2