Features: 1) Material: double-layer sandwich steel door panel spayed by powder coating or full finish painting 2) Maximum 3 hours fire rating 3) Electric or manual or remote control opening and closing systems. 4) Heavy duty slide rail system 5) Advanced technological smoke and heat detectors 6) Overall size: 6m height x 9m width 7) Designed for both commercial and residential use Package: plastic bag, strong carton