Product structure: 1. Three-tier structure of particleboard: surface with thinner, smaller special micro-shavings, with thicker core layer, the larger coarse wood shavings. The use of the three pavement pavement first. 2. Gradient structure Particleboard: Particleboard from the surface to the center, wood shavings gradually changed from small to large, table core no obvious changes in the use of air-pavement surfacing machine. Product Material: wood for the production of raw materials, urea-formaldehyde resin glue for cementing material. Product features: Smooth surface in greater detail, higher intensity, size, good stability, can be processed sanding and surface decoration