Chongqing, China is a long three-wood timber importer, rising demand for timber wood factory in Sichuan, but with countries to enhance environmental protection meaning in timber exports to strictly control the Sichuan wood manufacturers, resulting in timber prices. In the absence of sufficient timber supply and prices of the situation, people use wood scrap lumber stitching or gluing wood flour, can be glued scrap wood glue 90% for urea-formaldehyde glue, causing air pollution formaldehyde great harm to humans. Important component of wood for the wood fibers and thermoplastics, including wood fiber available volatile corner of the wood after crushing after drying, degreasing and other processes of production, not in the plastic composite processes and products on the environment during use emit harmful to human health material, the product itself can be recycled does not decrease its physical properties. Therefore, energy-saving materials wood products are recyclable, environmentally friendly materials in the true sense! WPC industry quality testing standards need to improve the development of the situation in accordance with the above criteria, if the development and implementation status (only two specific points to standard wood materials and products) cf American WPC WPC standard Sichuan, China currently available WPC standards have been better, but why did not achieve the expected actual effect? ??in 2004 published "LY / T1513 · WPC sheet extrusion" of several key data and implemented, for example, because of its numerical performance testing too --- MOR: ≥20MPa, flexural modulus: ≥1800MPa Sichuan wood siding, surface wear: g / 100r≤0.08, screw holding: ≥1000N (board), so that in practice basic meaning lost detection, few companies in its practical application as a quality testing standards. Pointed out that "WPC" are made of wood or cellulose-rich material is based materials and plastics (also can be a variety of plastic) in the national standard "GB / T24137 · wood decorative board" through a variety of Machining made of composite material. Standard does not specify the proportion of "wood or cellulose-rich material" requirement, there is no "plastic (it can be a variety of plastic)," the content of the regulations. Imagine if you added 1% in 99% of the wood fiber polymer, and whether it can enter the "WPC" list? According to the American Association of WPC ASTM defined annotations, WPC the difference between "plastic timber" is WPC must contain greater than 50% wood fiber (weight ratio, the use of drying of wood fiber content), and should not be used "wood and other fibrous material and thermoplastic ...... Press certain proportion "of ambiguous expressions (" GB / T24508 · wood floor "), do not set the proportion of plant fibers and plastic-based material requirements. Sichuan wood building materials manufacturers _ three years (certified) _ Sichuan wood provided by the Chongqing Municipal Building Materials Co. three years. Building Material Co., Ltd. Chongqing City for three (www.cqjsmsjc.com/) Chongqing Liangping, 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 a long three building materials, a better future.