Feature: Elegant style, open inward, window tilt: Can exchange the fresh air and prevent the water from outside together.

Window open: Space saving and easy to clean.

Window closed: Good watertight and air permeation resistance. Economic and reasonable structure.

Materials: 2050 series aluminum alloy extrusion, thickness from 1.4~2.0mm.

Surface treatment: Powder coacting(thickness at 110um); Electrophoresis(thickness at 18um); Anodize coating( thickness at 12um) etc.

Glass: Double or triple glass(tempered glass, figure glas, frosted glas, coated glass, low-e glass, tinted glass etc).

Hardware: Tilt-turn system. Roto, siegenia or China hardware etc(Europe standard channel).

Sealant: EPDM, PVC, silicone, etc.