Comparison of Fire Resistance Performance
1. Type-A Fire Door
Fire Resistance Limit: ≥ 1.5 hours (ensures optimal integrity and insulation)
Applicable Scenarios: Perfect for firewalls, oil storage rooms, power distribution rooms, cinema auditoriums, and other high-risk areas
2. Grade B Fireproof Door
Fire Resistance Limit: ≥ 1 hour
Applicable Scenarios: Ideal for 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: Perfect for cable shafts, pipe shafts, smoke exhaust ducts, and other low-risk vertical pipe shafts
Audited Supplier 
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