Yonghean Steel Fireproofing Door is made from cold rolled steelsheet with fire-resistant hadeware fittings and noncombustible stuffing is filled inside the door leaf.

Model of this series has been approved by China Quality Cerification Copmmittee for Fire Protection Products. And passed the inspection of National Quality Superevision & Inspection Center for Fixed Fire Fighting System and Fireproof Components. All the indexes of the doors are in conformity with the standars set by GB 12955-1991 General Technical Conditions for Steel Fireproof Doors.