1.Drawing spring compression springs 2.Different shapes of hooks available 3.wire diameter: 0 ... stainless steel, high temperature resisting alloy, corrosion-resistant alloy and bronze.2) Finish: chromium-plated, zinc-plated, gold- ... numberCS002Material availablecarbon steel wire, stainless steel wire, spring steel, brass, aluminum, copper, alloy, etcSurface treatmentpolishing, anodizing, zinc plating ...