The horizontal pivoting hardware s structure operated by the handle can adjust the handle to different open angle, which promote the aluminum alloy window to be inwards open or inwards pivoting. This device can adjust the Screw in front of the oblique control to make the sashes to be parallel. The up and bottom hinge are installed in the sashes and frame by the Cassette fastened lock, as to make the device more firm and durable, the main parts of the hinges is made by the stainless steel. The max load of the hinge up to 130kg, the bottom hinge is adjustable.