Hyundaibuick piston ring 1.Good quality,good packing,good finish 2.Guarantee 100000km 3.ISO 9001/TS16949 4.Sample order OK Engine parts -Piston ring for BUS Hyundai D4aeDiameter:104MM Good pistonProfessional service1)For buick piston ring. 2)Good quality,good packing,good finish 3)Competitive price,guarantee 100000km 4)material:nodular iron,cast iron,steel,alloy,and etc(we can do as customer's ...