MIL-S-6721B (NOTICE-1), MILITARY SPECIFICATION: STEEL, CORROSION & HEAT RESISTANT (CHEMICALLY STABILIZED) PLATE, SHEET & STRIP (07-JUN-1971) [S/S BY AMS 5512 & AMS 5510]

MIL-S-6721B (NOTICE-1), MILITARY SPECIFICATION: STEEL, CORROSION & HEAT RESISTANT (CHEMICALLY STABILIZED) PLATE, SHEET & STRIP (07-JUN-1971) [S/S BY AMS 5512 & AMS 5510].