Plywood - the king of multifunctional man-made boards   Plywood, as a man-made board widely used in many fields such as construction, furniture, and decoration, occupies an important position in the modern material world with its unique properties and diverse uses.Structure and production process of plywood: Plywood is made of multiple layers of thin wood sheets, that is, veneers, bonded together by adhesives. Usually, the fiber directions of these veneers are perpendicular to each other, and the wood grains of adjacent layers of veneers are staggered at 90°. This structure is called cross grain. In the production process, the logs must first be cut into thin slices, and then the veneers are dried to control their moisture content. Next, the adhesive is evenly applied to the veneers, and then they are stacked in a certain order and direction. Finally, the adhesive is cured by hot pressing or cold pressing, and the veneers are tightly combined to form plywood. Common plywoods include three-ply, five-ply, seven-ply, etc. The number of layers is generally an odd number, which can make the plywood more symmetrical in structure and reduce the possibility of warping and deformation.   Performance advantages of plywood:1. Good stability: Due to its unique cross-grain structure, plywood has a relatively uniform strength in different directions and can effectively resist deformation and cracking caused by humidity and temperature changes. Com