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By certification 
emergency fire door
Emergency fire doors are heavier than Residential doors, often made from durable, fire resistant materials like metal or mineral core.Standard time ratings will vary from 20 min. – 180 min. according to the occupancy of the area in which the door is located. Depending upon area, small companies or government agencies may determine fire ratings.
Product name |
Emergency fire door |
Size |
double leaf: up to and including 8'0''*8'0'' |
Opening |
inward/Outward, Left/Right(90 degree ) |
Design |
double vision panel door; double flush door |
Material of leaf |
cold-rolled steel,galvanized,or galvanealed |
Material of frame |
cold-rolled steel,galvanized,or galvanealed |
Thickness of the door leaf |
45mm 50mm |
Fire rated time |
90mins |
Filling material |
honeycomb,polystyrene,mineral board |
Surface Finish |
primer painting,finished painting,powder coating,heat-transfer |
http://www.ghdoorframe.com/
