On the basis of achieving "sound insulation and noise reduction, thermal insulation and energy conservation and environmental protection", further meet the aesthetic demand of modern people for "large vision and large space" of doors and windows.

(B)Product feature:
★Waterproofing by Rain Curtain Principle:
The interior and exterior chambers are designed to achieve waterproofing and drainage by utilizing the pressure difference between the inside and outside, keeping both sides of the outer surface in a state of equal pressure, preventing the ingress of rainwater, and helping with heat dissipation, condensation control, and long-term durability.
★Superior Thermal Insulation System:
With a deeper thermal barrier strip, the frame components utilize imported 40mm multi-chamber PPO thermal barrier strips. The frame thermal insulation cavity employs high-pressure integral cavity filling technology, using long-lasting imported German sealing strips. This results in upgraded thermal insulation and heat preservation performance.
★Stable Performance Delivery:
Customized ultra-high-strength DP steel and a stable four-link structure support multi-dimensional adjustment, ensuring the full performance of the product through reasonable structure and special 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:
 ★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