Aesthetic architecture: The upper folding door frame can be used with a variety of different exterior wall building materials to achieve a consistent hidden door effect that is both beautiful and practical.  

Awning/ventilation/anti-UV: Large opening design with multiple functions, in line with modern popular penetration vision, bright and large open space 

Sanjiu Company’s latest folding door frame can be used with a variety of different exterior wall building materials, making the entire exterior wall consistent and having the effect of hiding the door. It is not easy to see the opening position of the building, solving design problems. During the planning and design stage, units do not dare or reduce the design of openings to avoid the concern of damaging the beauty of the building, giving the building the greatest significance of both beauty and practicality.