Product Description: This aluminium tilt and turn system is equipped with the highly performance of inside open window, inward open and bottom-hang window, out-open window, outward open and top-hang window, inward open door, outside-open door, fixed window, assembled window etc.. Different widths for the window frame, which system belong to the medium and small strip-pull on thermal insulated profile, the whole system looks decent and it is suitable for kinds of buildings. It can be assembled with different specification glass, the appearance not only could be square or round chamber for the glass-beading but also the corners,. It is of common 45° angle, special angle for inward open and bottom-hung even kinds of corner joint connecting