Liaocheng Deyao Co.Ltd.has been a leader in the industry of manufacturing vehicle engine componentsand diesel engine parts in China. Since its foundation ill ow,it has played an active role in the economic construction of China andeven the world and has supported many famous domesticdiesel engine manufacturing enterprises with series of products. Since2016,Deyaohas devoted to the research and development of components of the vehicle common-rail fuel injection system. Byintroducing world-class production process,advanced manufacturing and testing equipment and cuting-edge R&D and manufacturingtechnology,These components and parts of fuel injection systems can completely satisfy Euro 4 emission standard for vehicleengines and substitute similar imported products. Besides,due to their excellent qualityand reasonable prices,theyhave been wellreceived by users both home and abroad. With an annual output of over 700,000 sets,the company is a professional manufacturingenterprise producing the most ypes and the most complete models of high-pressure common-rail valve assemblies in China. Itsproducts have been sold in over 30 counties in the world such as the United States,Germany,Russia,Morocco and Turkey,andhave been recognized and praised by vast customers. Thus,it has realzed a good situation of mutuallybeneficial and win-winrelationship with customers.