... 8mm-600mm standard:ASIM JIS DIN GB cold drawn steel bargrade:20Cr,40Cr,15CrMo,20CrMo,30CrMo, ... cold drawn and cold rolledappolication:machined components,pump shafts,valves,fasteners,machine tools, surgical&medical partspacking:according to the weight and length of steel ... packaging. We supply high quality steel perennially,include all kinds of material ... cooperate with you. cold drawn steel bar