Subject
Welding
Handbooks, manuals, etc
6
Steel, Structural-welding
5
Blueprints
4
Mathematics
4
Metal
4
Metal-work
4
Alloys
3
Metallurgy
3
Cutting
2
Drawing
2
Drawings
2
Metal - cuttings
2
Metal - work
2
Metal-cuttings
2
Pipe
2
Study and teaching (Secondary)
2
Technology
2
Aluminium
1
Amateurs' manuals
1
Blue-prints
1
Books
1
Brazing
1
Civil service
1
Engineering
1
Examinations
1
Examinations questions
1
Gas tungsten arc welding
1
Guide
1
Guide Books
1
Metal Work
1
Metal cutting
1
Oxyacetylene welding and cutting
1
Oxyacetylene welding and cuttting
1
Pipe fitting
1
Vacational Guidance
1
Vocational guidance
1
Welded joints
1
Work
1