Yangzhou Weiye Manufacturing Ltd, is the leading plungers / elements and delivery valves manufacturer in China, founded in 1958, located at Maji Industrial Park in Yangzhou, Near Nanjing and Shanghai and Ningbo city, the logistic is convenient.There are more than 300 employees, included total 35 technogistes and engineers ,245 main production equimpents and CNC machines and inspecting & test equipment , Weiye houses occupy 35000 square meters.Before 2003, Weiye is sub-factory of Wuxi Weifu Group, with Chinese economic development, after 2003, Weiye was seperated from Weifu, at the same time, Weiye is specified top supplier by Weifu, As regarding Weiye plunger couples / elements , Weiye is unique supplier of Weifu.In domestic and oversea markets, the products which made in Weiye are very popular.Weiye has quality certificate ISO9001 and environment management system ISO14000.The pumping element is a main subassemblly of the fuel injection pump. It raises the pressure of the fuel at a very high level and forces in through the injectors and at a metered quantity to the combustion chamber of the enine. At the same time , the pumping element ensures the starting moment of the injection process and its duration, being also responsable process and its duration , being also responsable for the performances of the engine in the terms of fuel economy and exhaust emission. The pumping element has a piston and a barrel manufactured within very tight tolerances, to avoid fuel leakage during the injection process. The pumping element is an assembly high accurate matched and this is the reason which for its components are no interchangeable.WEIYE adopt Bosch-tech , Zexel-tech ,Delphi-tech and WEIFU-tech to develop and manufacture goods to meet domestic and oversea requirement. Element plunger type include: A-pump, B-pump, K-pump, M-pump, P-pump, PS7100-pump, WM-pump, AD/AD-pump, PN-pump, PL-pump, Simms (Delphi) -pump, ...Application for tractor, bus, vehicle, generator, agriculture machine, marine, on-road or off-road vehicle, ....Main used in in-line mechanical injection pump of diesel engine. WEIYE also develop and manufacture element plunger barrel assy for hydraulic system. Welcome you to customize goods, welcome to visit WEIYE, Welcome to connect with us, we look forward to stay in touch, let's work hard for a bright future, Thank you.