Established in 2002, Qingdao YanKee Mechanical and Electronic Equipment Co., Ltd. is a high-tech enterprise which integrates design, R & D, manufacture and sales of onshore & offshore petroleum equipments / accessories. Since its foundation, the company has been devoting to technology innovation and quality improvement. It now has become one of the leading manufacturers & exporters in China and accumulated rich practical experience in providing petroleum drilling equipment and tools. We offer products as below: F1000 triplex single acting mud pump, double-cylinder double-acting mud pump, F1300 triplex single acting mud pump, F1600 triplex single acting mud pump, mud pump piston liner, Bi-metal piston liner for mud pump, zirconia ceramics cylinder liner, mud pump hydraulic cylinder assembly, mud pump valve seat, mud pump valve assembly, mud pump wear plate, mud pump piston rubber, mud pump pistons, F1600 mud pump plug board, mud pump valve guide, mud pump relief valve, mud pump piston liner gland, piston liner head flange, mud pump crosshead, mud pump extension rod, mud pump clamp, A type annular BOP, D type annular BOP, ram BOP, annular BOP conical packing unit, annular BOP spherical packing unit, blind ram, variable ram, shear ram and pipe ram. Our products have been exported to more than a dozen countries covering North America, South America, Africa, Middle East and Southeast Asia, like USA, Canada, Russia, Ukraine, Nigeria, Brazil and so on.