MIL-F-6939B, MILITARY SPECIFICATION: FLUX, ALUMINUM AND ALUMINUM ALLOY, GAS WELDING (26 JUN 1970) [S/S BY SAE-AMS3414]
MIL-F-6939B, MILITARY SPECIFICATION: FLUX, ALUMINUM AND ALUMINUM ALLOY, GAS WELDING (26 JUN 1970) [S/S BY SAE-AMS3414]., This specification covers one grade of flux for use in the gas welding of aluminum alloys