This aluminum folding doors with the smooth opening. No matter children or old people can easily open it. Aluminium bi-folding door shows the perfect view for you. Enjoy your life with the aluminium bi-folding door. It is suitable for balcony and exterior door. Brings the elegant experience for you. Can be perfectly combined with all other ROOMEYE window and door system.  Features1) Much more perfect appearance2) Elegant design3) High quality standards4) Available in any sizes as per your needs5) Good watertightness performance, air permeability performance, noise insulationand heat resistant propertiesDo not hesitate to show us your desired windows and doors, we will help you find the one that matches you best