Very promising WPC wood preservative With the growing lack of wood resources, wood material into a new direction of development of building materials industry. WPC has a waterproof performance, and also has a very high environmental protection. WPC is a combination of wood and plastic elements common advantage of composite materials, which not only preserves the wood pro and appearance, but its performance is more superior waterproof, can be applied to wet conditions among the logs can not be used custom wood, and it will not rot and deformation phenomenon. WPC is a more promising with a material which does not contain formaldehyde wood patio, and most of its materials can be recycled, so it is a meet the requirements of China's sustainable development of green building materials . PVC WPC extrusion molding and extrusion molding ordinary thermoplastic material difference in the production of PVC plastic composite material to process the most complex conditions change. In operation, in addition to due process and reasonable formula, the molding machine process control (process) is extremely important yield and quality of the key variables are: screw speed, feed Jane temperature, mold temperature, vacuum forming, WPC traction speed. WPC extrusion molding anomalies, their causes and solutions. Wood lines, long three-building materials (certified), wood provided by the Chongqing Municipal Building Materials Co. three years. Chongqing City for three Building Materials Co. (www.cqjsmsjc.com/) Chongqing Liangping County, building materials processing leader, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the three years leading building materials with the staff warmly welcome all inquiries negotiations to create long three building materials better future.