GB fire resistant door standard instruction
•Standard：GB12955-2008 fire resistant doorsets
•Model: HG-GB-D22
•Type: steel Fire door with decorated cladding
•Fire Rating:1.5hrs; heat insulation:1.5hrs
•Features: Applied to public buildings, mainly used at fire prevention zones like high-end hotels, office building, super high-rise building, landmark building, hospital, stadium, theater, shopping mall, stations, airport and so on.
•Grades: class a 90min; class b: 60min; class c: 30min
•Executive Standard:gb12955-2008 Fire rating: Class A 1.5 hours，Class B 1.0 hours，Class C 0.5 hours, door thickness: 45~55mm, door frame thickness: 100~120mm
Technical Parameters
| Door material | 1.0mm galvanized steel plate |
| Frame material | 2mm galvanized steel plate |
| Door core | steel Fire door with decorated cladding |
| Frame sizes | 100*54mm（standard size） |
| Insulation | 30min ≦ r ≦90min |
| Acoustic | 38db ≦ r ≦42db |
| Door thickness | 45~55mm |
| Finish | Various decoration Veneer panel |
Finished steel fire door with a versatile surface that can be affixed or dry-hung with stainless steel, aluminum, stone, sheetrock, wallboard and more.
