LILINGROUP.LILINGROUP, established in 2000 and headquartered in Tianjin, is a specialized enterprise primarily engaged in the manufacturing of specialized equipment. The company focuses on producing professional tools and equipment for the petroleum and mining drilling industries, including screwdrill assemblies, roller cone bits, reamers, surface drive units, subsea oil production pumps, hydraulic assembly/disassembly tools, and motor test benches. LILINGROUP's headquarters spans 450 acres and employs nearly 800 staff, including over 100 engineering and technical personnel. The LILINGROUP R&D Center has been recognized as a National-Level Enterprise Technology Center. The Group possesses state-of-the-art machining centers and a full suite of auxiliary, inspection, and testing instruments. The Group has established a comprehensive system integrating R&D, production, and quality inspection under project-based management, evolving into a technology-driven enterprise of significant scale within the petroleum machinery manufacturing sector. LILINGROUP has implemented a robust quality assurance system, pioneering certifications including ISO9001 Quality Management System, ISO10012 Measurement Management System, ISO14001 Environmental Management System, ISO45001 Occupational Health and Safety Management System, API SPEC Q1 Oil and Gas Industry Quality Management System Specification certification, CE product safety certification, and China Classification Society (CCS) marine product certification. It has also obtained the right to use the API spec 7-1 emblem. Primary products include: screwdrill assemblies, roller cone bits, PDC bits, shield machine (TMB) cutterheads, rotary drill bits, reamers, screw conveyor pumps, screw oil pumps and drive heads, hydraulic assembly/disassembly tools, and screwdrill motor test benches.