Plywood is made of relatively thin wood veneer. Two adjacent layers of wood chips (single boards) with mutually perpendicular wood grains are superimposed. The wood chips are coated with super glue and pressed together under a certain temperature and pressure. Usually use phenolic glue, urea-formaldehyde glue and melamine glue. The common reason for using plywood instead of wood board is because plywood has strong resistance to cracking, shrinkage, distortion and general high strength properties.
Plywood has a wide range of classifications and uses. Cork plywood is usually made of poplar and pine, which are widely used for construction and industrial purposes. Decorative panels usually use hardwood as the surface of the plywood. Including oak, red oak, birch, maple, eucalyptus (Philippine mahogany) and other hardwood species.