Nanjing Ruijiayi Precision Machinery Co.Ltd.

We are a leading manufacturer and exporter in China. have experience with more than 10 years.We products such as oil pump, rotors gears for valve guide seat, piston ring, bearing housing, ball screw linear motion spline.gas spring, hydraulic pump rotors, vacuum sinter bush. provide you top ...

Telephone：86-2586318569Address：56 hanzhongmen street, Nanjing, Jiangsu, China