Wood plastic, or wood plastic composite material, is a new type of composite material that has been booming in recent years at home and abroad. It refers to the use of polyethylene, polypropylene and polyvinyl chloride, etc., instead of the usual resin adhesive, mixed with more than 35%-70% of waste plant fibers such as rice husks and straw to form new wood materials, and then produced through plastic processing processes such as extrusion, molding, and injection molding. The board or profile is mainly used in building materials, furniture, logistics packaging and other industries. The board formed by hot extrusion after mixing plastic and wood powder in a certain proportion is called extruded wood plastic composite board. Wood plastic products can be used in wood plastic interior doors, skirtings, integrated cabinets, wardrobes, exterior wall panels, ceiling ceilings, decorative wall panels, outdoor floors, guardrail columns, plastic steel pavilions, garden guardrails etc