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fireproof boiler room door,advance fireproof door clifton nj,fire rated door accessories

The thickness of steel fireproof door is divided into three standards: A, B and C. It has excellent sound insulation and heat insulation performance. The steel fire door has good air tightness and is closed very tightly without leaving a crack, allowing air conditioning and heating to overflow.

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आग प्रतिरोधी दरवाजा निर्माता, घर के लिए आग प्रतिरोधी दरवाजे, आग प्रतिरोधी दरवाजा, आग प्रतिरोधी दरवाजा,fireproof boiler room door,आग प्रतिरोधी दरवाजा मानकों,advance fireproof door clifton nj,बाहर निकलें दरवाजा चौड़ाई कारक, आग प्रतिरोधी दरवाजे ताले,fire rated door accessories,

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