1.Frame Thickness：1.8mm；Out-frame：120mm 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 45then connect by the angle connector6.Glass slot：34mm；could install with 5mm+19A+5mm tempered glass7.Could install the curved handle8.1.5m ×1.5m Standard Window：17.2kg/m²