Also known as flame-retardant board, flame-retardant plywood, flame-retardant plywood, etc., it is a three-layered or more layer made from wood logs or wood planed into small wooden cubes, and the wood chips are subjected to flame retardant treatment and then glued with adhesive Layered plywood is usually made of odd layers of wood chips, and the fiber directions of adjacent layers of wood chips are glued perpendicular to each other.
Density 660, 750, 800, 880, 980, 1080, 1150, 1250, 1350
