... fix length;Diameter tolerance:-0/+8 mm(Black surface),-0/+3 mm(Rough Turned);Delivery condition:Forged+Normalzied/Annealed+Quenched and ... : 42CrMo4, 34CrNiMo6,39CrNiMo3,18CrNiMo5,17CrNiMo6,41Cr4,S355J2G3,ST52-3,16MnCr5,20MnCr5,21CrNiMo2.Tool Steel: H13,1.2714Mill:Jiangsu Zhuhong Forging Co.,Ltd ...