Navy Department specifications. 46R4. Rods and wire, welding, iron and steel (for gas welding) [dated Nov. 1, 1939], cancellation notice [effective Nov. 9, 1950].
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Rods and wire, welding, iron and steel (for gas welding) [dated Nov. 1, 1939], cancellation notice [effective Nov. 9, 1950].
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Navy Department specifications. 46R4. Rods and wire, welding, iron and steel (for gas welding) [dated Nov. 1, 1939], cancellation notice [effective Nov. 9, 1950].