advantage:
1. Light weight, clear lines, insulation, high strength, not easy to deform.
2. It is convenient for construction, not suitable for warping, and has good transverse tensile resistance.
Disadvantages:
1. Generally, the cost is high.
2. The plywood is not as smooth as the surface layer of the density board. When the plywood is used as the base layer, and the surface is bonded with fireproof board, aluminum-plastic board and other decorative plates, it is not as firm as the medium density board as the base layer.
Plywood is one of the commonly used materials for furniture. It is one of the three major panels of wood-based panels. It can also be used for aircraft, ships, trains, automobiles, buildings and packaging boxes. A group of veneers is usually formed by gluing mutually perpendicular to each other in the direction of wood grain of adjacent layers. Usually, the surface plate and inner layer plate are symmetrically arranged on both sides of the central layer or plate core. The slab is made of glued veneers which are crisscrossed in the direction of wood grain and pressed with or without heating. The number of layers is generally odd, and a few have even numbers. There is little difference in physical and mechanical properties in the vertical and horizontal directions. Commonly used plywood types include plywood, plywood, etc. Plywood can improve the utilization rate of wood and is a main way to save wood.
