Dongying Lake Petroleum Technology Co., Ltd (Lake Petro) is a global supplier of drilling and well-servicing equipment for the oil and gas industry. Combining proven engineering with rigorous quality control, Lake Petro delivers high-performance components engineered for demanding onshore and offshore operations. Our product range includes swivel joints, valves, packers and repair kits manufactured to API standards and compatible with FMC-equivalent items. We employ modern CNC machining, precision assembly and material traceability to achieve even wall thickness, balanced components and extended service life. Lake Petro’s swivel joints feature an integral ball-bearing three-ball-race design that provides stable heavy-load performance and reduced vibration under variable loads. We offer long-radius and short-radius models to minimize fluid shock or fit compact installations as required. Safety features include synthetic rubber seals with release holes and blowout-preventing metal rings that permit controlled pressure relief in case of seal failure. With global spare parts support, preventive maintenance guidance and fast delivery, Lake Petro partners with operators, service companies and OEMs to maximize uptime, lower lifecycle costs and ensure reliable field performance. Our technical team provides application engineering, custom configurations, testing, and on-site commissioning to ensure each product meets client specifications and operational demands. Including continuous field support.