Cold room door Good -quality color steel or aluminum foil board ... color steel panel, widely used in house, freezing house, clean room, garage door, roof, wall, anti-fire, sound absorbing etc ... panel is 0.985m.* PU color steel cold storage panel systems (PU cold storage Panel) 1. Fire Rating. PU ... construction time and period and cost. It can be pre-manufactured in factory and assembled on site, so it ...