... .1~5mm high precision tolerance:+/-0.02~0.05mm Application: contact springs, home appliance,computer, camera, power box, socket, digital ... products,automobile spring, textile machinery parts.Material: stainless steel, copper, carbon steel, manganese steel, tinplate.Machining thickness: 0.1~ ... bending, drilling, welding, burring, polishing, brushingOEM/ODM drawing welcome contact springs