Product Features

● Double internal windows, independent system for both inside and outside.

●The screen window and the inner casement window have independent systems, and the 304 steel high-definition screen window mosquito proof ventilation system is independent, which does not affect the independent closed waterproof system of the inner window at all

●Ensure waterproofing and wind resistance of the inner window.

● Single internal bidding with high-quality hardware, optional high-quality professional internal opening and inverted hardware.

● Internally open and internally inverted, equipped with three layers of sealed native rubber strips for waterproof sealing, unique drainage, six layers of waterproof technology, windproof system, and windproof drainage cover, truly achieving internal sealing

●Waterproof sealing system window for opening windows.

●German style frame splicing technology ensures frame strength, improves sealing and waterproof performance, and is equipped with a system injection molding process. Professional expansion guide injection angle codes are used to inject professional double groups

●Apply adhesive to achieve full adhesive testing. Apply anti-seepage adhesive to the cross-section, self leveling sealant to the central column, waterproof the entire frame, and prevent water from seeping into the wall or indoor space.

●Adopting reinforced PA66GF25 nylon insulation strips that have passed multi chamber testing, it provides better sound and heat insulation, good weather resistance, and is less prone to aging and deformation.

●Outdoor fixed glass is glue free and uses native EPDM composite foam sealing strips, which are not easy to age or shrink after long-term use. The air chamber type is more soundproof, absorbent and waterproof, and more sealed.

●3C certified Xinyi original glass, safety tempered glass, specifications 5MM+20AMM+5MM, integrated bent aluminum strip filled with durable molecular sieve to prevent fogging and mold growth, sound insulation, heat insulation, anti freezing, beautiful, atmospheric, energy-saving and environmentally friendly.

●Internal and external flat frames, with beveled or generous pressure lines for a more beautiful appearance. The whole frame is connected to the water blocking edge, beautiful and waterproof. The gauze fan is equipped with a circular protective angle inside.