... (zinc, nickel, chrome, etc.) 5. Material: Steel, copper, etc. Hot-selling Compression Spring Wire diameter0.02-12mmMaterialSteel: steel, carbon ... , etc. Price:Price is made according to the material and spring design.User Guide:In order to quote ... price. The range of our products is wide, including Compression springs, Extension springs, Torsion springs, Battery spring, Power spring, Coil spring , Leaf ...