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Steel Fire Door

Steel fire doors are usually applied in the exits of hotels, hospitals, schools, and other commercial buildings to avoid fire occurs. It is known that the steel fire doors are made of galvanized steel, but there are many kinds of different thickness of Gl steel sheet. ASICO steel fire proof doors are made of 1.5mm thick Gl Steel for the door frame and 1.2mm thick for the door leaf. In addition, we should pay attention to the infilling core of the doors. The basic standard for the infill is: fireproof, heat insulation, environmentally friendly, and harmless to the human body. There are two kinds of infilling cores we can provide: 1. honeycomb core: it is a common and economical material and has good heat-resistant features. 2. rock wool: the function of rock wool is better than other materials; in addition to flame-retardant and heat insulation functions, it also has certain soundproof features. Of course, its price is higher. If you are looking for a high-quality fire door, it is recommend to choose it as filling core.