Nanjing Ruiying Piston Manufacturing Co., Ltd., formerly known as Nanjing Jinling Auto Parts Factory, is a manufacturer specializing in the production of piston rings, with a history of more than 50 years. The company covers an area of 36,000 square meters, with a floor area of 20,000 square meters, total assets of RMB 50 million, and an annual productivity of about 60 million piston rings.

We are professional manufacturer of various Piton Rings for Diesel & gas oil engine,