PVC Tilt &turn window series: the entire fitting design is reasonable, and function consummates, which endue with the perfect function of gas tightness, water tightness and security,etc.

• PVC旋转内开窗的整套配件设计合理、功能完善、赋予内开内倒窗优良的气密性、水密性、防盗性等功能。