American crank casement window
American crank casement window , also often referred to as the American internal casement or American pivot window, is a window type that is revered for its unique opening and elegant design. The design originated in the United States and blends practicality with aesthetic design to match modern home styles. It has the following characteristics. First ly , easy to use: American crank casement window is equipped with a crank handle, which can be used to open and close the window by just gently rotating it, making it easy to operate. Secondly, good ventilation: due to the ability to fully open the sash, this type of window performs well in ventilation and is suitable for rooms that require good air circulation. Thirdly, good sealing performance: when the window is closed, the sash can closely fit the frame, effectively preventing rain and air infiltration, with good windproof and waterproof performance. Fourth, safety: because the window sash opens inward...