... orthopedic knee implants 1.material: ss304 17-4ph 2.cast part , machining, assemble service are available artificial legs orthopedic knee implants1 ... , 15CrNi6, 16MnCr5, 42CrMo4, 35CrMo, 40Cr etcsizeAccording to customers' requirementdesignpacking cast part for orthopedic knee implants