Rolls Royce Corp.
AMS 2468, AMS 2469, AMS 2470, AMS 2471, AMS 2472, AMS 2473, AMS 2474, AMS 2482, AMS2700, AMS-MIL-8625, ASTM A380, ASTM A967, MIL-A-63576, MIL-C-5541, MIL-DTL-5541, QQ-P-35
AMS 2468, AMS 2469, AMS 2470, AMS 2471, AMS 2472, AMS 2473, AMS 2474, AMS 2482, AMS2700, AMS-MIL-8625, ASTM A380, ASTM A967, MIL-A-63576, MIL-C-5541, MIL-DTL-5541, QQ-P-35