As one of the major piston ring enterprises in China, Jiangsu Yizheng Wellong Piston Ring Co., Ltd. has an almost 30-year history of manufacturing various types of professional piston rings with the annual output of 50 million pieces of piston rings and 10 million pieces of valve seats.
?? Wellong piston rings are supplied to over 30 large engine producers, and many replacements and parts markets in China , and exported to 18 countries in Europe, Africa, America, Southeast Asia, and Middle East.