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Industrial Exterior Commercial Interior Galvanized Steel Chinese Hotel Escape Exit Steel Fireproofing Fire Resistance Fire Security Doors with BS Certificate

Industrial Exterior Commercial Interior Galvanized Steel Chinese Hotel Escape Exit Steel Fireproofing Fire Resistance Fire Security Doors with BS Certificate
MORE PARAMETERSFire RatingClass A ≥90min, Class B ≥60min, Class C ≥30minService lifeService life:>10 yearsSurface...