RONGSHENG MACHINERY.RONGSHENG MACHINERY, established in 1976, is a globally leading manufacturer of land blowout preventers and a Class A supplier to CNOOC. Its business spans the entire industry chain, encompassing land/offshore well control equipment, mud pumps, and directional/vertical drilling rigs. The company holds international certifications including ISO9001 and API Q1, establishing a technical system encompassing eight core products such as blowout preventers, subsea equipment, and production trees. Its expertise extends to engineering services including pressure operations and kill manifold systems, supporting oil and gas equipment R&D, manufacturing, and integrated solutions through a high-standard quality management system.