The hollow chipboard is named for its unique tubular structure, which is shaped like an arch bridge. As an innovation in the manufacturing process of the door core plate, the "bridge mechanical plate" has become a highlight of the products of indoor door manufacturers. The "bridge mechanical plate" uses the principle of the arch bridge opening, and through high-tech processing, the solid wood chips are made into a unique tubular structure, which can evenly disperse the external force and ensure no deformation. The tubular structure makes the bridge mechanical plate reduce the weight by 60% compared with the same solid wood plate. At the same time, the bridge mechanical plate can effectively prevent the diffusion of temperature and achieve good thermal insulation effect.
Because of its fire prevention, sound insulation, environmental protection and other characteristics, the mechanical panel of bridge has become the preferred door core material for high-end wooden doors in China.