... .Material:3.Temperature,Corrosion-resistant,Non-magnetic 4.FactoryBright surface high strength spring steel wire Type one spring steel wire1.Material ... .5-7.0mm 3.Surface :dark,dull4.Application: Mainly used for mechanical use.Package:50/100kg/coil, coils packed in Bundle ... packaging. Feature:Temperature ,Corrosion-resistant ,Non-magnetic,etc. Bright surface high strength spring steel wire for sale