12104 main window products are offered for sale by suppliers on Alibaba.com, of which casement windows accounts for 1%, others windows accounts for 1%, and sliding windows accounts for 1%.
A wide variety of main window options are available to you, such as free spare parts, onsite installation and onsite training.You can also choose from aluminum alloy, steel and wood main window,as well as from swing, folding, and slide main window, and whether main window is villa, hotel, or apartment.