... Piston Ring 1.Engine piston ring, auto piston ring 2.Different treatment:Phosphated, Nitrided etc. 3.ISO9002,QS9000,TS16949 Piston Ringpiston ring for Komatsu 6D105 engine:1.piston ... DA220, GD150, DA640, 6BD1, 6BB1, 4BB1, 6BF1, 6BG1, 6BG1MTC, 4BE1, 6BG1-TC, 4BG1, 6HE1, 6HE1, 4HE1, 4HF1, 12PA1, 4HG1, ... 104.775,105.775, TD71, 120,TD100, 144, 127Toyota piston ring5A, 3ZZ, IS-U, 5K, 2C, 2L-T, 2L-TE, 2KD ...