Nanjing Ruiying Piston Co.,Ltd.fomer Nanjing Jinlin Auto parts manufacturing factory) is the State-owned enterpise manufacturing spare part for autos.It boasts a history of more than 40 years and main customers include: FAW Group, Dongfeng Group , Yuejin Group.Main products are:piston ring,piston,piston pin,cylinder liner,valve,crankshaft,etc.. With more than 1300 staff and 800 producing equipment the annual capability of Cylinder housing reaches 700 thousand.