--Produced by aluminum wood compound, German style, with firm connection and tidy assembly;
-The figure of the frame fully embodies the simple and elegant style;
-Sealed drain system with excellent airproof and waterproof ability;
-The glass can be taken down easily at room, which make the maintenance and glass-change convenient, in addition to the colorful decoration;
-Double-sealed insulating glass;
-Carrying the ��equal size room�� theory has excellent heat-preservation, sound insulation and less-transfiguration ability;
-The slim frame let the window obtain the large lighting area and bright effect; as well as need less profile and be economy at factually.