1.Auto engine Crankshaft 2.high performance 3.stable & reliable 4.strict QC management 5.OEM and ODM service 1> Crankshaft Material : QT800-2 nodular iron cast.2> Straight shot and chamfer oil holes.3> Large fillet radius on all journals.4> Precision ground, micro polished, balanced & magnaflux.5> All fillets of journal rolled . For more information and specification,please contact us.