... huge compression spring material:60Si2Mn wire diameter:22mm length:1380mm used in insdustry machine super huge compression springmaterial:60Si2Mnwire ... compression spring,torsion spring,tension spring,sprial spring,power spring,wire form,bow spring,suspension spring,low spring,assemblies ... ,energy sources and furnature.XULONG SPRING's mine machine springs are made with hot rolling method,and ...