Casement Window,office building corridor casement window,decorated office building corridor casement window,acoustic decorated office building corridor casement window

http://www.prancebuilding.com/blog/portfolio-item/acoustic-decorated-office-building-corridor-casement-window/
Prance acoustic decorated office building corridor casement window is very popular in commercial complex projects in many contries. It combines functions and aesthetics, and can be produced customized.