Description of how Navy aircraft welders are prepared for their work and then checked systematically with qualification tests; in addition to training given apprentices, all welders of Yard are required to pass welding tests semiannually; table gives results of tests of welders, Norfolk Navy Yard.
Train the welder
Welding Engr
Welding Engineer ; 14 , n 5
1929
3 pages
4 Figs.
Aufsatz (Zeitschrift)
Englisch
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NTRS | 1980
|NTRS | 1990
|NTRS | 1980
|NTRS | 1979
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