Zhangjiagang Dingyin Pipe-Making Co., Ltd. is specialized in producing stainless steel seamless pipes, cold-drawn and cold-rolled precision pipes, high-pressure oil pipes, black phosphated pipes, air conditioning pipes, galvanized pipes, cold-drawn welded pipes and other seamless pipes & tubes. Our company is located in Changdai Industrial Park, Jingang Town, Zhangjiagang City, near Zhangjiagang Free Trade Zone - the only functional inland port in China.

Our company has been approved by ISO9001 Quality System and has obtained the license for making steel tubes for boilers and pressure containers from the State Quality Technical Supervise Bureau of China. Our company has advanced production equipment, ultrasonic testing machines, eddy current testing machines, hydraulic testing machines, electron microscopes, universal testing machines and elemental analyzers.

Our products can be widely used in such industries as pressure vessel, petrochemical, boiler, heat exchanger, auto part, hydraulic system, pharmaceutical machinery, ship, air-conditioning refrigeration, electric heating appliance, electronic instrument pipeline, and so on. Since our establishment, we have won a good reputation from worldwide customers with perfect quality management systems and reliable product quality. Currently, our products are not only directly sold to many related domestic companies on a long-term basis, but also widely sold to Europe, America, the Middle East, Southeast Asia and other countries and regions.

Based on the principle of "Dingyin Pipe, Quality First" and the purpose of "Customer Satisfaction, Sustainable Improvement" and considering "quality and credit" as our business foundation, we sincerely hope to cooperate with domestic and overseas users by our constant and durable product performance. We hope to develop the markets for mutual benefits. We warmly welcome all friends to visit us for guidance.