Hebei Tongjian Plastic Products Co., Ltd. is a modern enterprise that integrates the research and development, production, and sales of plastic pipes and fittings. The company currently has two production bases in Hebei, covering an area of over 100000 square meters, and has 100 internationally advanced production lines. Its main products include PE series, PVC series, PP-R series, M-PP power cable protective sleeve series, PE-RT series There are nearly a hundred products in six major series, including the double wall corrugated series, widely used in fields such as water supply, drainage and sewage, power communication, underfloor heating, fire protection, and agriculture. The company has an annual production capacity of over 40000 tons and is one of the strongest plastic pipe production enterprises in China< Since its establishment, the company has adhered to the corporate tenet of "customer-centered, wholeheartedly serving customers", with "excellent quality and pursuit of excellence" as the quality policy, and "integrity and harmony, mutual benefit and win-win" as the business policy. It advocates the business philosophy of relying on technology, market-oriented, survival based on quality, and development based on efficiency. Continuously implement the ISO9001:2015 quality management system, ISO14001:2015 environmental management system, ISO45001:2018 occupational health and safety management system, and Xinhua water-saving certification standards. The company organizes production in strict accordance with relevant national Standards organization, efficiently provides customers with high-quality products, and has a perfect after-sales service system, which has been widely recognized in the industry.