Casement windows are hinged at the sides and can be build for inside or outside opening The type of opening is up to your choice, for outside opening the security grills have either to be fitted inside, which makes it very difficult to clean the window, or if put outside, designed in such a way that there is sufficient space to open the window. If the window is made for inside opening, then the security grill can be fitted outside which allows for easy cleaning of both sides of the window. A universal system to make inward and outward opening doors, which achieves great success in UK and many Asian countries. Slope designing optimize the appearance of the door by slimmer version. Compatible glazing and gasket structure accept glass from 4 to 32 mm Unique design of Z-style of transom can realize the ideal joint no matter welding or mechanism coupling Co-extruded glazing bead with lips makes the tight sealant and easy working on assembly The coming door solution will make the system consummate Colour co-extrusion technology available Outstanding advantages for its economics