1.Frame&Sash Thickness:1.2mm;Out-frame:90mm width2.Glass Sash:Outward opening;Gauze Sash:Inward opening3.Hardware Slot:European Standard Design,could match any standard accessories4.This system designs 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.5.Frame&Sash should cut in 45 then connect by the angle connector.6.Glass slot:8mm/25mm;could install with 4mm-6mm single tempered glass or6mm+12A+6mm tempered glass7.The distance of window and gauze is 42.1mm,could install the curved handle8.Depending on the wall thickness,it could install the covered inside or outside and both.9.1.5m ×1.5m standard window:9.7kg/m2