energy effecient windows

ST70 Concealed Sash

APA Launch new ST70 Concealed Sash Window APA Facade Systems have recently developed our ST70 Concealed Sash window. It has a slim design, with a surface of only 66mm from the exterior. The Slim profile provides the inside of the building with a substantial increase┬áin luminosity. A 35mm thermally broken area, and the insertion of […]

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