1, the raw material used in all our products of high quality original material completely guarantee the excellent performance of the product quality and tubing. 2, process technology I am using the most advanced methods of production processes, all through the ISO9001: 2008 quality and ISO14001: 2008 environment system certification. 3, the device I have extruder production line imported from Germany, made "weft" extrusion lines and a variety of injection pipe production lines with annual production capacity of 100,000 tons, fully guaranteed product quality and various needs of the market. 4, product testing my company produces products strictly implement the relevant national and industry standards for the production and testing of construction materials testing and commissioned by the National Center for regular testing to ensure product quality and stability. 5, test reports and certificates of our company every batch of raw materials used have inspection report, the company produced at the same time each batch of pipes have product inspection report and certificate. Large concessions, welcome customers to inquire price Address: 10 Chinese plastics industry Baodi East Road, Chaoyang District, Tianjin