orthotics prosthetics spring lock: material:SS304,17-4PH OEM,CNC machining,assemble,service are ... .Standard: ASTM,BS,DIN,JIS etc5.Production capacity: more than 600 tons per year6.Minimum order quantity: 0.5ton7.Delivery time ... , 42CrMo4, 35CrMo, 40Cr etcsizeAccording to customers' requirementdesignpacking orthotics prosthetics spring lock