Wood-plastic Composites (WPC) refer to the use of polyethylene, polypropylene and polyvinyl chloride instead of conventional resin adhesives, mixed with more than 35%-70% of Wood flour, rice husk, straw and other waste plant fibers into new wood materials. After extrusion, molding, injection molding and other plastic processing technology, the production of the plate or profile. Mainly used in building materials, furniture, logistics packaging and other industries. Plastic wood composite material has been gradually popularized and applied in many countries in the world.