Wood fiberboard is a kind of high pressure laminate wood fiberboard (HPL) for building curtain walls. The core layer is made of waterproof and weather-resistant thermosetting resin impregnated wood fiber kraft paper, and the decorative surface is impregnated with special resin, which makes a highly stable and dense sheet with high strength and impact resistance under the high temperature of 150 degrees and the high pressure of 1430PSI. The core layer and the decorative surface are pressed together at high temperature, and chemical cross-linking reactions occur between the macromolecular chains. Fully integrated to ensure good appearance and durability of the plate during use.