battery contact springs 1.Wire Dia.0.08mm-4 ... SWC CU 3.Standard:ISO9001 ROHS SGS 4.Customizable battery contact springs1>9 years of experience in producing springs2 ... mild steel wire, manganese steel wire, phosphorus copper wire, nickel-plated wire, zinc-plated wire, tin-plated copper wire ... , nickel-plated steel wire, non-magnetic stainless steel wire, heat ...