Plywood is a laminate of 3 or more (typically odd) wood veneers glued together by adhesive in a staggered texture orientation. Generally, the veneer texture directions of adjacent layers are perpendicular to each other.
Plywood, also called plywood, is a technological wood. It is made of thin wood veneer. All adjacent veneer wood grain direction perpendicular to each other to ensure that the entire slab has better strength, usually plywood are odd layers, commonly used are plywood, plywood and so on. The symmetrical structure can reduce the variation of the board, and the wood grain direction of the two boards is the same. Between the veneer coated with high-strength plastic, under pressure at a certain temperature under pressure from the usually phenolic glue, urea-formaldehyde glue and melamine glue. One common reason for using plywood instead of wood is because plywood possesses strong resistance to rupture, shrinkage, twisting and high-strength properties. And plywood and solid wood compared to a larger size range, so there are many applications in the building.