1,forging shaft 2,High quality and Competive price ... 1.0473,1.1170,1.5515,1.5538,1.7016,1.7030,1.7033,1.7035,1.7243,1.7218,1.7220,1.7225,1.8159,1.7131,1.7147,1.5810,1.5805,1.5752,1.6523,1 ... .40313,Bearing steel : USAASTM,AISI440C5210041184118H862043209310511005160JAPANJISSUS440CSUJ5SUJ4SUJ3SUJ2SUJ1SNCM220SNCM21SCM420 Company introduction: 1. Our company has advanced technological equipments, all kinds ...