Mechanics and metal trades Engineering and engineering trades Mechanics and metal trades is the study of planning, designing, developing, producing, maintaining and monitoring machines, mechanical plants and systems and metal products. It includes designing and maintaining machines which produce goods and services. The focus of study in this detailed field is machines, mechanical systems and metal products. Programmes and qualifications with the following main content are classified here: - Gunsmithing - Hydraulics - Locksmithing and safe repairing - Mechanical engineering - Mechanical trades - Metal casting and patternmaking - Metal fitting, turning and machining - Metallurgical engineering - Precision mechanics - Sheet metal working - Steel production - Tool and die making - Welding The study of motor vehicle mechanics and engineering is excluded from this detailed field and included in detailed field 0716 'Motor vehicles, ships and aircraft'.