... the SpringMaterialCarbon steel, alloy steel, stainless steel, spring steel or as you requestWire diameter0.15mm-8mmLoad typeExtensionFinish zinc, copper, nickel, black, chrome ... deliveryApplication Housing appliance,automobiles, railways, trailers, bearingsPayment termsT/T, L/C,WULead-time15 daysPackaging Inner plastic bag, outer carton box, and ...