The door frame adopts a composite structure of high-quality wood and fireproof board, and a layer of fireproof board with a thickness of 12mm is added to the fire-facing side of the wood. The coated steel plate is selected, and the wood grain decorative effect is optional. All contact parts of the door frame and the door leaf are equipped with fire-proof and smoke-proof expansion sealing strips, which can expand at critical moments to prevent lethal smoke from passing through.
The door leaf adopts an original sandwich structure. A fire-resistant glass magnesium board is added between the flame-retardant wooden frame and the surface decoration layer, and the wooden dragon frame is filled with green and environmentally friendly perlite fire-resistant material. The reasonable structure enables the door leaf as a whole to withstand flames up to 1000°C. The high-density board with melamine finish has high surface strength, scratch resistance, and is suitable for harsh construction environments. Optional wood grain finish, with a certain decorative effect.
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