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Steel Door Frame manufacturers Fire rated door frame The fire endurance and heat insulation performance of our fire rated door frame is not less than 90 minutes. The gap between the leaf and fire rated door frame on both sides will not be greater than 4mm. It will make a good air tightness of fire doors. It will inhibit the spread of fire and smoke under fire conditions by the good quality fireproof rubber seals. Since we use lock down packing (KD packing) , it will save a lot of shipping cost for one container. The specification of this fire rated door frame can be flexibly customized according to the needs of customers. Parameter Material: galvanized steel Steel thickness: 1.1-1.5mm steel Frame height: 2.1/2.4m or up Door stop: 25mm to stop the fires from going out FAQ 1.聽 Do you have local store in my country? Yes, we have warehouse in some countries, please check it with our sales. 2. Could I be your factory distributor? Sure, Ur most welcome, we will support you and create value together. 3. What is the thickness of this frame? From 1.1mm to 3.0mm. 4. How about the fire resistance time? Certified by 90 minutes. 5. Do you charge moulding fees for my own sample? No, we do not charge it, you can send us the sample, we will have sample ready for you.Steel Door Frame manufacturers website:http://www.gtsteeldoor.com/steel-door/steel-door-frame/