MIL-S-22664B (AMENDMENT 1), MILITARY SPECIFICATION: STEEL, STRUCTURAL SHAPES ALLOY, HIGH YIELD STRENGTH (HY-80 AND HY-100) (23 APR 1991) [S/S BY T9074-BD-GIB-010/300]
MIL-S-22664B (AMENDMENT 1), MILITARY SPECIFICATION: STEEL, STRUCTURAL SHAPES ALLOY, HIGH YIELD STRENGTH (HY-80 AND HY-100) (23 APR 1991) [S/S BY T9074-BD-GIB-010/300].