The design with narrow frames and flush-fitted sash on both interior and exterior offers a sleek and unobstructed visual experience.The narrow border, expansive view, and seamless facade effect appeal greatly to younger consumers, who appreciate modern aesthetics and functionality.

(B)Product feature:
★Flush-fitted Frame and Sash Design Structure:
The frame and sash are flush-fitted, creating a uniform and aesthetically pleasing exterior facade for both indoor and outdoor areas. When closed, it provides a tight fit, better hiding and protecting the sealing strips, hardware, and other accessories,  ensuring long-term performance and durability.
★Enhanced Thermal Insulation System:
Larger thermal insulation strip depths are achieved with imported 40mm multi-chamber PPO thermal insulation strips. The frame's insulation cavity uses high-pressure injection technology, and long-lasting sealing strips imported from Germany are used, upgrading the thermal insulation and heat preservation performance.
★Custom Hardware Components:
The product utilizes custom hardware with dedicated slots and a concealed handle design, ensuring both aesthetic appeal and durability.
★Innovative Hinge Design:
An internal hinge design is employed (hinge installation is located on the indoor side of the profile). The hinge and lock point are located on the same interface and away from the waterproof cavity, effectively enhancing the product's safety.
★Stable Performance:
Custom ultra-high-strength DP steel and a stable four-bar linkage structure support multi-dimensional adjustment, ensuring optimal product performance through intelligent design and superior materials.

★Aluminum Profile: 6060/T66:
European Standard ultra-high precision grade 6060-T66 profiles for the main material. The surface is treated with industrial-grade sandblasting,ensuring safety,durability and long-term weather resistance.

(C)Technical performance:
●Flush-fitted outwards opening with Z-Mullion + Fixed Convertible Frame
●Flush-fitted outwards opening with Opening Convertible Frame 
★Load-Bearing Components: 
Customized High-Load Capacity Four-Bar Linkage Hinge with Inner Slot Design.
Locking Mechanism: Up to "4+5" with 9-Point Locking Design
Maximum Load Capacity of Opening sash: 70kg for casement/120kg for Top-Hung
Visible Width of Profiles:
Frame Profile: 23mm
Sash Profile: 43mm
Middle Mullion Profile: 47mm
Visible Width of Mullion and Sash: 99mm
Visible Width of Frame and Sash: 75mm