steel door 1.Fireproof door:30mins,60mins,90mins,fire rating 2.BS BM Trade Q.Mark:American Interek WH: FIRE STEEL door1.Fireproof door:30mins,60mins,90mins,fire rating 1) Material: door panel: cold-rolled steel ,door frame: Hot-Rolled Sheet Steel 2) thickness of the door leaf: 5cm/7cm/9cm 3) frame outer size(H×W): a) 2,050mmx960mm b) 2,050mmx860mm c) 1,970mmx960mm d) 1,970mmx860mm 4) Accessories: ...