1) Roller door models: XF-55, XF-77, XF-98 2) Material: galvanized still with powder coated 3) Foaming: environmental polyurethane foaming 4) Color: white Replacing old style rolling door, "Xu Feng" rolling door has better heat preservation function and anti-air pressure ability. Besides, "Xu Feng" door has elegant appearance, and can resist wind blowing ,sand and water erosion effectively.