Keywords:
Refractory metal alloys, Approval testing, Mechanical testing, Intergranular corrosion, Testing, Nitriding steels, Marking, Ferro-alloys, Case-hardening steels, Sampling methods, Defects, Air transport engineering, Castings, Heat treatment, Casting (process), Nickel alloys, Steels, Sand casting, Chemical composition, Cobalt alloys, Centrifugal casting, Ferrous alloys, Hardness, Acceptance (approval), Inspection, Copper alloys