... , XF-77, XF-98 2) galvanized steel,PU foam insulated. 1) Roller door models: XF-55, XF-77, XF-98 2) Material ... white, brown, other colors customizedReplacing 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 ...