Comparison of Fire Resistance Performance
1.type-A fire door
Fire resistance limit: ≥ 1.5 hours (optimal integrity and insulation)
Applicable scenarios: Firewalls, oil storage rooms, power distribution rooms, cinema auditoriums, etc. - areas with high fire risks
2.Grade B fireproof door
Fire resistance limit: ≥ 1 hour
Applicable scenarios:High-risk areas such as evacuation stairwells, vestibules, and ordinary equipment rooms
3. Grade C fireproof door
Fire resistance limit:≥ 0.5 hours
Applicable scenarios: Cable shafts, pipe shafts, smoke exhaust ducts and other low-risk vertical pipe shafts
Audited Supplier 
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