MDF is medium density fiberboard and playwood is plywood.

1. MDF is medium density fiberboard

2. Medium density fiberboard is a kind of artificial board made of wood fiber or other plant fibers, which is crushed, fiber separated, dried, applied with urea formaldehyde resin or other applicable adhesives, and then hot pressed. Its density is generally in the range of 500-880kg/m3, and its thickness is generally 5-30mm.

3. Medium density fiberboard (MDF) is a product developed in the mid-1960s, and its output has developed rapidly in recent years. The reason is that it has excellent physical and mechanical properties, decorative properties and processing properties. MDF (Medium Density Fiberboard) is also called particle board and fiberboard. It is made of wood, recycled paper, bamboo, carbon fiber and straw after a series of processes. It is superior to natural wood in stability, high temperature resistance and other indicators, and its cost is lower. In addition, the production of density board can make full use of the waste and fast-growing wood produced in logging, timber making and log processing, which is of great significance to the forest protection in China.. Plywood is a three-layer or multilayer board like material made of wood segments that are peeled into veneer or sliced into thin wood by wood planing, and then glued with adhesives. Usually, odd layers of veneer are used, and the fiber directions of adjacent layers of veneer are perpendicular to each other.