Zhengzhou Liseron Oil Pump & Nozzle Co., Ltd is specialized in core spare parts of diesel injection system for more than 20 years, mainly producing and selling diesel nozzle, pump plunger, delivery valve, injector assembly, Bosch & Denso & Delphi control valve, Bosch valve cap 334, CRIN repair kits, injector adjusting shim, common rail nozzles, common rail injector tester and repair tools. Except our own brand “Haoteng” and “DYD”, we are also agent of UK ERIKC brand common rail parts. Liseron have an excellent R&D team and advanced processing & testing equipments, constantly importing foreign advanced technology and device, then ensure products quality is at the same level of world. We have top five-axis CNC machining device, ultra-precision five dimensional inspection instruments, high precision CNC grinding machine, roundness measuring equipments, Germany middle hole seat surface grinding, Switzerland four-station spray hole EDM machine tools, U.S. extrusion grinding machine tools, Italian high-precision centerless grinder, Germany needle angle grinder, U.S. processing center etc, to achieve precision of thousandth point five millimeters. Our OEM products are not only sell to domestic markets, but also are welcomed in Europe, Americas, Middle East, Southeast Asia, Africa etc.