Basic introduction of plywood

One of the commonly used materials for furniture is a kind of artificial board. A group of veneers is usually formed by gluing a group of billets perpendicular to each other according to the wood grain direction of adjacent layers. Usually, the surface and inner layers are symmetrically arranged on both sides of the center layer or the core of the board. Slabs made of glued veneers are criss-crossed according to the direction of wood grain and pressed under heating or non-heating conditions. The number of layers is generally odd, and a few have even numbers. The difference in physical and mechanical properties in the vertical and horizontal directions is small. Commonly used are plywood, plywood, etc. Plywood can improve the utilization rate of wood and is a major way to save wood. It can also be used for airplanes, ships, trains, automobiles, construction and packing boxes.

The usual length and width specifications are: 1220 × 2440mm, and the thickness specifications are generally: 3, 5, 9, 12, 15, 18mm, etc. The main tree species are: camphor, willow, poplar, eucalyptus, etc.