- 09
- May
fire hatch doors,ul 20 minute fire rated door 36 x 80,sliding internal fire doors
The steel fire door is recognized by many people because the materials used are solid and stable steel, which is non rusting, non corrosive, and has good sealing performance. Therefore, the steel fire door made of high-quality steel and refractory materials can not only meet the safety requirements, but also ensure the long-term stable use of users without damage.
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