1.Standard American style PVC profile with multi-cavity, good drainage system, effectively insulate heat stream and sound source. Galvanized support steel strengthens its air-pressure resistance.
2.Vertical sliding system uses rolling strip. Window sash can stop at any position. It is a more agreeable window type for reasonable ventilation and light.
3.Dapper profiles for window frame, more weather-proof sealing strips. Perfect air-tightness.
4.Fly screen with aluminium frame fixed outside, but still can be taken away from indoor.
5.Movable sash can be turned down freely for easy cleaning and maintenance.
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