Battery spring with wire diameter from 0.08mm up to ... steel, SUS, alloy steel, iron, plat 1.Battery spring with wire diameter from 0.08mm up to 3.6mm2 ... etc3.widely used in chargerrecorder,flashlight,calculator,battery charger,toy and other electric areas4.Packing with plastic bags, inner ... boxes and outer cartonsAs the biggest manufacturer of spring in FoShan area,you can expect these from us: ...