... ... 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, ... of zinc coating(no less than) g/m²Strength of extension MpaRate of elongation LO=200mm(no less than)Resistance coefficient ...