... Diameter: 0.20mm~12.00mm Standard: DIN17223-1 Spring Steel WireSpring steel wire is our main products which ... 70#, 72A, 72B, 80#, 82A, 82BDiameter: 0.20mm~10.00mmProduction Standard: DIN17223, GB 4357-89Chemical Composition Steel GradeGB StandardCarbon ... .0130.0080.050.040.1465Mn0.60-0.700.10-0.250.70-1.000.0300.0300.200 ... : 0086-523-86808039MOB.: 0086-18651174066 SAE1070 High Carbon Spring Steel Wires