PLYWOODS

* Plywood is a material manufactured from thin layers or "plies" of 

wood veneer that are glued together with adjacent layers having their

 wood grain rotated up to 90 degrees to one another.

* It is an engineered wood from the family of manufactured boards which include

 medium densitty fiberboard  (MDF) and particle board (chipboard).

* All plywoods bind resin and wood fibre sheets  to form a composite 

material.