Petroleum energy construction is of great significance to the development of the country. As a professional seamless steel pipe manufacturer, HNHL is deeply engaged in the field of seamless steel pipes, providing various high-end oil and gas pipes for China's petroleum energy exploration and transportation, and escorting China's energy strategy security.
As a strategic supplier of Sinopec, PetroChina, and CNOOC, in the field of oil and gas pipelines, HNHL has "out of the circle" with strong independent research and development capabilities and a good brand image, and has firmly ranked among the "top three" in China's oil and gas seamless pipe industry.
High-strength and high-toughness tubing and casing for ultra-deep wells break through a number of key technical difficulties;
The third-generation special buckle passed the four-level test evaluation in the top international laboratories, reaching the world's advanced level;
The deep-water steel catenary riser broke through the technical problems of "stuck neck" in key national areas, and realized the localization of the "throat arteries" of deep-sea oil and gas exploitation, and submerged 1,542 meters into the sea together with the submarine line pipe.