Analyzing Fire Resistance Capabilities
1. Type-A Fire Door
Fire Resistance Limit: ≥ 1.5 hours, providing unparalleled integrity and insulation.
Ideal Usage Environments: Ideally engineered for high-risk areas like firewalls, oil storage rooms, power distribution rooms, cinema auditoriums, and other critical locations demanding superior fire protection.
2. Grade B Fireproof Door
Fire Resistance Limit: ≥ 1 hour
Ideal for high-risk zones like evacuation stairwells, vestibules, and standard equipment rooms, offering robust fire resistance.
3. Grade C Fireproof Door
Fire Resistance Limit:≥ 0.5 hours
Ideal Usage Environments: Perfectly suited for cable shafts, pipe shafts, smoke exhaust ducts, and other low-risk vertical pipe shafts, providing dependable protection.
Audited Supplier 
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