- 27
- Mar
ul 20 minute fire rated door,white fireproof doors,garage interior door fire rated
The steel fire door is composed of a steel frame and a steel door leaf. The steel structure can ensure that it is not susceptible to impact deformation and external force damage, and can be used normally for a long time without replacement. The process and quality inspection process of steel fire doors in the production stage are very strict, only in this way can they pass the inspection before they can be sold.
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