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Class A fireproof doors are the highest class fireproof doors. Fireproof door is an important part of fire fighting equipment, fire fighting door is actually a variety of materials, such as wood fire door, steel fire door, steel fire door, other fire door; It is an important part of fire prevention in society, so the quality and use of fire protection door is the key to the success of fire prevention. The fireproof insulation, fireproof integrity is greater than 1.50 H; Fireproof door is an important part of Fire-fighting equipment, and it is an important part of fire prevention in society.
