Preheat workpieces, using heating furnaces or hand torches.
- 51-2041.00 Structural Metal Fabricators and Fitters
- 51-4193.00 Plating Machine Setters, Operators, and Tenders, Metal and Plastic
- 51-4121.00 Welders, Cutters, Solderers, and Brazers
- 51-9071.00 Jewelers and Precious Stone and Metal Workers
- 51-4072.00 Molding, Coremaking, and Casting Machine Setters, Operators, and Tenders, Metal and Plastic
