1.Frame Thickness:1.4mm;Out-frame:125mm 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 part.5.Frame&Sash cut in 45° then connect by the angle connector6.Glass slot:35mm;could install with 5mm+20A+5mm tempered glass7.Could install the ordinary handle8.1.5mX1.5m Standard Window:13.1kg/m2(excluding the wear and tear)