high carbon spring steel wire 1.Material:65#, 2.Diameter:0.15-13mm... 3.Special Use: Cold 4.ISO9001 high carbon spring steel ... wire Material:65#,Diameter:0.15-13mmhigh carbon spring ... steel wire Product Detail Steel Grade45#, 60#, 65#, 70#, 62A, 72A, 72B, 82B, 65MnStandardASTM,DIN,GBSizecustomer's design is ...