... Designers and OEM Suppliers of all types of Spring. Material55CrSi,60Si2Mn,60Si2MnA,60Si2CrA,60Si2CrVA,etcWire Diameter0.4mm ... Tons. (per pc.)ApplicationExcavator, Digger Machine, Vehicle, Motorcycle, Train, Ship, Shakeout Machine, Oscillation Absorber, etc.Painting and ... Blue, Red, Yellow, Gray, etc.Production MethodHot Formed,Cold FormedNoteThe materials and specifications can be decided by the ...