... =14000mm max Grade:45C,35CrMo,34CrNi3Mo,17Cr2Ni2Mo,etc multi-diameter shaftforged,forgingshaft:plain shaft,multi-diameter shaft,gear shaft,eccentric shaft,wind ... =1000mm max,Total L=7000mm maxroll:hot and cold roll,core,Size,diameter=850mm maxring,sleeve,diameter=2500mm max,L=4000mm ...