... Nitrided etc. 3.ISO9002,QS9000,TS16949 Piston Ringpiston ring for Komatsu 6D105 engine:1.piston ring material :nodular iron, cast iron ... piston ringS6KT, 3116(7E5213), CAT110, 3204, 3208, D-330, D-336, D-333, D-334, 3304(2W6091),3306(9S3068)3307(2W1709), 3300, 3406 ... , 4D130, 6D140, 6D155, S6D155, S6D170Volvo piston ringTD100A, TD100B, TD120G, 85, 104.775,105.775, TD71, 120,TD100, 144, 127Toyota piston ...