MS33532C, MILITARY STANDARD: SQUARE AND RECTANGULAR TUBING - CARBON STEEL AND ALLOY STEEL .35 CARBON, MAXIMUM (12 JUL 1960) [NO S/S DOCUMENT]
MS33532C, MILITARY STANDARD: SQUARE AND RECTANGULAR TUBING - CARBON STEEL AND ALLOY STEEL .35 CARBON, MAXIMUM (12 JUL 1960) [NO S/S DOCUMENT].