... alloy and bronze.2) Finish: chromium-plated, zinc-plated, gold-plated, silver-plated, copper-plated, tin-plated and nickel-plated, painted, spraying powder ... availablecarbon steel wire, stainless steel wire, spring steel, brass, aluminum, copper, alloy, etcSurface treatmentpolishing, anodizing, zinc plating, nickel plating, etcTypeCompression springApplicationauto, toy ...