LILINGROUP.LILINGROUP, established in 2000 and headquartered in Tianjin, is a technology-driven enterprise specializing in the R&D and manufacturing of petroleum and mining drilling equipment. The company operates a 450-acre production base and a national-level technology center equipped with advanced processing and testing facilities, holding multiple international certifications including ISO9001 and API Q1. Its core product portfolio encompasses a full range of drilling and production equipment such as screwdrills, roller cone bits, and PDC bits. Through independent R&D and project-based management, LILINGROUP has established a complete industrial chain. Its products, certified by CE and CCS, are widely applied in oil and gas extraction as well as mining engineering.