... ) Detector Flaw :100%,Salt Spray Test:>800H Function: Fatigue Test:>60,000,000OEM: 30 Years ExperienceFunction: The Suspension Spring durable,suitable for continuous operationFunction ... %,Salt Spray Test:>800HBrand Product Serial: "Shaungdi" Serial Product Cover Spring and Stamping Part,Such as Clutch Spring,Suspension spring,valve Spring,Compression spring,Tension Spring,Torsion SpringCooperation ...