... hinge,90 degree or 180 degree Size Fire rated door Fire rating: 20 minutes, 30 minutes, 45 ... , 90 minutes Certificate: CE, UL,Steel fire rated door1. Certificate: American standard UL (ANSI/10B, ANSI/10C) ... 30 minutes, 45 minutes 60 minutes, 90 minutes3. Door leaf: 52mm thick Sheet thickness 1.0mm, Galvanized ... prevention expansion seal (on 4 sides)4. Door frame: Double rabbet frame with all-round fire ...