Piston Ring 1.Engine piston ring, auto piston ring 2.Different treatment:Phosphated, ... . 3.ISO9002,QS9000,TS16949 Piston Ringpiston ring for Komatsu 6D105 engine:1.piston ring material :nodular iron, cast iron, steel, ... , 6D40T,8DC9T, 8DC10, 8DC11, S6A, 8DC11, 8M20, S6A2Nissan piston ringTD25, TD27, FD6T, ED33, FD6, FE6, FE6T, FE6TA, ND6, ND6T, NE6,, ... any way we can! Piston ring for Komatsu 6D105 engine