QINGLIN.QINGLIN was established on August 4, 2008, as a high-tech enterprise integrating research, development, production, and sales. The company occupies a site of 30,000 square meters with a building area of 18,000 square meters. It employs 198 staff members, including 96 with college degrees or higher and 8 engineers. The company specializes in R&D and manufacturing of high-, medium-, and low-pressure rubber hoses and hose assemblies, metal-rubber composite flexible hoses, high-pressure drilling hoses (high-pressure water hoses), flexible choke and kill lines (high-pressure fire-resistant blowout preventer lines), GNG high-pressure fire-resistant insulated hose assemblies (BOP blowout preventer hydraulic control lines), stainless steel metal hoses and compensators, high-pressure hammer unions, telescopic steel unions, pneumatic unions, self-sealing unions, rigid straight pipe assemblies, high-pressure swivel elbows, universal joints, quick couplings, annular rubber cores, gate valve rubber cores, and various pipe connection fittings. Products are widely applied in petroleum drilling, petrochemicals, coal mining, military, aerospace, shipbuilding, metallurgy, mining, construction, power generation, hydropower, pharmaceuticals, food processing, and other industries. QINGLIN holds certifications including ISO9001:2008 Quality Management System, ISO14001:2004 Environmental Management System, OHSAS18001:2007 Occupational Health and Safety Management System, American Petroleum Institute (API) Product Certification, and National Mining Product Certification. Primary products include: high-pressure drilling hoses, flexible choke and kill lines, high-pressure fire-resistant insulated hoses, high-pressure hose series, medium- and low-pressure hose series, metal hose series, petroleum machinery accessories series, hydraulic and pneumatic fittings series, other rubber and plastic products, and compensator series.
