... Name: High carbon steel wires, spring steel wires, mattress spring wire, high carbon spring steel wires2. Material: Steel GradeGB StandardCarbon ... .22-0.240.59-0.760.0080.0040.004 82A, 82B0.820.24-0.250.76-0 ... .770.011-0.0140.004-0.0070.14-0.17 3. Production Standard: ... carbon steel wires, low carbon steel wires.Spring steel wires, mattress spring steel wires.Spoke steel wires, nipple steel ...