Paint-free board is a kind of wood in interior decoration materials, which has natural texture, clear grain, no color difference on the surface, waterproof, moisture-proof and dust-free. Using paint-free thread to repair the edge of the mouth, there is no need to worry about adding ash and paint after nailing when gluing, which can save the labor and paint cost of painting after construction, avoid the unhealthy smell and carcinogen caused by paint to human body, not only save a long-term maintenance cost, but also shorten the construction time, with elegant and generous effect. Now the reputation of the market is better than that of the Fu Sen plate, right?