1945 National Tube Company bulletin No. 16 Shelby Aircraft Tubing

Description

1945 National Tube Company. United States Steel Corp. Subsidiary, Pittsburgh PA, Tubing Specialies Division, bulletin No. 16 (Shelby Aircraft Tubing). Shows how a Shelby is manufactured and the types of tubing that go into the manufacturing. Full of photos, charts, info that an engineer or someone who builds plane would understand. In Excellent condition.
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