cold drawn steel bar grade:20Cr,40Cr,15CrMo,20CrMo,30CrMo,42CrMo size:0.8mm-600mm standard:ASIM JIS DIN GB cold drawn steel bargrade:20Cr,40Cr ... :cold drawn and cold rolledappolication:machined components,pump shafts,valves,fasteners,machine tools, surgical&medical partspacking:according to the weight and length of steel ...