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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）