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AK55內開內倒窗采用隔熱斷橋技術，傳熱系數小，保溫性能優，內倒開啟既可以讓室內外空氣流暢，又不占據室內空間；獨有的等壓和排水裝置，呈現產品經典之作；配件選用更靈活，結構合理，外形更優美。
適用于住宅、別墅 、會展中心和體育館等。
AK55 horizontally pivoting window, made with heat insulation and cut-off bridge technique, has a small heat transfer coefficient and excellent heat insulation performance. Horizontally pivoting window can well ventilate a room without occupying indoor space; unique constant pressure and drainage units make the product a typical one; spares, which can be selected flexibly, have reasonable structure and attractive appearance.
Suitable for resident, villas, convention centers and gymnasiums. 

AK50節能平開窗是一種帶流線型高級外開窗，外觀造 型優美，顏色為咖啡色；在中空玻璃中內置傳統的古徽州裝飾花格，既具有古徽州門窗的韻味又有現代文明的氣息。
一種型材可以實現多種開啟方式；采用轉換框制作，實現玻璃的內裝和外裝及窗扇的內開和外開；最大最大可以配置6+12+6的中空玻璃。
適用于別墅、會所、居家等高檔住宅小區。
AK50 energy-efficient casement window, a streamlined high-end outwards opening window, has beautiful appearance and is brown; the traditional decorative lattice of ancient Huizhou style built in the double glass displays a local and modern taste.
Multiple opening means can be realized with a type of profile; glass can be built in and on window frames, and sashes can open inwards and outwards; max 6+12+6 double glass can be used.
Suitable for high-end residential districts like villas, clubs and residence.