... type,AA group type,AAA group type. MaterialPiano wire, stainless steel, High Carbon Steel, Nickel Plated, ... Phosphor copper Bronze, Copper Bronze, Beryllium Copper.Wire Diameter0.1 mm ~ 10 mm and above.Free ... Chromium / Yellow Zinc / Oxide black or CustomizableApplicationsAerospace, Industrial, Medical applications, Automotive applications, Household appliances, Electronic, Toys, Hardware tool.