... .50mm~7.00mm 1. Product Name: High Carbon Steel Wire, Spring Steel Wire, High Carbon Spring Steel Wire, Carbon Steel Wire, Spring Wire2. Material: Steel GradeGB StandardCarbon%Silicon%Manganese%Phosphorus%Sulphur ... spring steel wires.6. Our other material: 65Mn, 70#, 72A, 72B, 80#, 82A, 82B,50CrVA, 55CrSiA, 60Si2MnA, 67CrVA, 67A, 67A, 67BPerfect quality ...