Material: 45#, 42A, 42B, 60#, 65#, 65Mn, 70#, 72A, 72B, 80#, 82A, 82B, 1006, 1008, Q195, Q235, ... .00mm 1. Product Name: High carbon steel wires, spring steel wires, mattress spring wire, high carbon spring steel wires2. Material:Steel GradeGB StandardCarbon%Silicon%Manganese%Phosphorus%Sulphur %Chromium ...