1) main material: 60Si2Mn, carbon spring steel ,alloy spring steel, refractory steel, stainless steel, high temperature resisting alloy, corrosion-resistant alloy and bronze for small compression spring,lift springs.
2) Finish: chromium-plated, zinc-plated, gold-plated, silver-plated, copper-plated, tin-plated and nickel-plated, painted, spraying powder, coloring
3) the quality management system of our company has certified by china certification center (CQC) ISO9001:2000
4) over a decade of production experience, shorter lead time and best price,factory price
If you are interested in our products, please contact me. I am expecting a happy cooperation with you, thanks.