WPC railing quality assessment principles: assessment by the piece, excellent products must be at least 7 to meet the requirements, wood railing advantages must be at least six first-class products to meet the requirements, qualified products must meet the requirements of not less than five. WPC railing acceptance principles: The sampling railings, handrails, the carvings railing customized, superior product rate of less than 90%, the lot shall be first-class product acceptance; first-class rate of less than 90%, the lot shall be Qualified acceptance; pass rate of less than 90%, the batch sampling should be doubled, wood railings production, qualified rate is still less than 90%, then all should repair. Repairing railings, handrails, after inspection, all by qualified product acceptance, repair methods and test results should be documented. Three long wood fence with dual advantages of natural wood and plastic profiles, is a polyolefin plastic and plant fibers (wood flour, bamboo powder, straw, etc.) processed through a special deal with a new formula of green landscape materials, with no rot, no distortion, no fading, no cracking, waterproof, pest control, mold, no maintenance, Xinjiang carvings railing, 100% recyclable, etc., Sida wood fence widely used in outdoor construction, interior decoration, landscape, packaging multiple areas of logistics, is a key state to encourage the development of environment-friendly new materials. Woodcarving railings production of building materials _ three years (certification) _ Xinjiang carvings railing 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.