DALIPAI.DALIPAI was established on September 18, 1998, with its registered location in Cangzhou City, Hebei Province. It is a specialized, full-industry-chain intelligent manufacturing enterprise dedicated to the research, development, production, and service of oil country tubular goods (OCTG). DALIPAI remains committed to the R&D, manufacturing, and service of OCTG, boasting advanced technical equipment and a prominent full-industry-chain advantage. The company operates intelligent production lines for billet production using scrap metal as primary raw material, oil pipe rolling, pipe end thickening, heat treatment, and oilfield tubular processing, along with an intelligent oil pipe turnover warehouse. This enables seamless information connectivity throughout the entire manufacturing process from raw materials to finished products and comprehensive online quality monitoring, ensuring swift and efficient delivery of high-quality products to meet customer demands. Its flagship products include 2 3/8″-20″ API and non-API oilfield tubulars featuring high crush resistance, corrosion resistance, high-temperature resistance, and specialized threads. These also encompass tubulars for shale gas, natural gas, and coalbed methane development, alongside supporting products for high-end energy equipment in wind power, nuclear power, hydropower, and petrochemical sectors. Among these, the full-process manufacturing technologies for special-purpose oilfield tubulars—including those with high temperature resistance, pressure resistance, corrosion resistance, crush resistance, and special threads—along with high-grade sulfur-resistant oil and gas transmission pipes, have reached industry-leading standards. The company's products are widely used in major oil and gas fields across North China, Daqing, Changqing, Southwest China, Shengli, Xinjiang, and beyond. They have obtained certifications from internationally renowned companies such as KOC and are exported to over 70 countries and regions worldwide. DALIPAI has successively obtained certifications including: API Q1 Quality Management System Certification ISO 9001 Quality Management System Certification ISO 14001 Environmental Management System Certification ISO 45001 Occupational Health and Safety Management System Certification ISO 50001 Energy Management System Certification ISO 10012 Measurement Management System Certification GB/T 23001 Integration of Information Technology and Industrialization Management System Certification, GB/T 29490 Intellectual Property Management System Certification, ISO 37301:2021 Compliance Management System Certification, Carbon Management System Certification, Green Supply Chain Management System Certification, CNPC HSE Management System Certification, American Petroleum Institute (API) 5CT, API 5L, and API 5DP Product Certifications, and the National Special Equipment Production License (TS). Primary products include: Pipes for oil and gas exploration and development, Pipes for other energy applications, Mechanical structural pipes.
