plastic windows.

Hanging on the window This is later appeared in an aluminum alloy, plastic windows. It is in the flat window on the basis of the development of new forms. It has two ways to open, can be flat open, but also from the top of the open. When the window is closed, the upper part of the window can be opened, and a gap of about ten centimeters can be opened. That is, the window can be opened from above, the open part is suspended in the air and fixed with the window frame by hinges. Called on the suspension. Its advantages are: both ventilation, but also to ensure safety, because there are hinges, the window can only open ten centimeters of the seam, from the outside hand does not come in, especially for no one at home when used. This function has not only limited to the open window, sliding window can also be suspended on the open.