Say goodbye to traditional opening and closing constraints! The lift window can be vertically lifted and opened, with automatic and manual dual selection. The window sash is completely hidden in the top window frame, truly achieving zero occupation of indoor and outdoor space. Large opening area, providing unobstructed panoramic view and excellent ventilation. Smooth and stable operation, excellent sealing and insulation, safe and stable. Especially suitable for balcony windows, kitchen workstations, landscape windows, and high-rise buildings, maximizing space utilization and enjoying transparency and freedom!