1 Machining
1a General machining (metallic) (conventional)
1b General machining (non-metallic)
1c Screw thread (by cutting)
1e Spinning and Bearings
1h Screw thread (by rolling)
1j Grinding (cylindrical, internal, surface and centreless)
1l C.N.C machining (turning and milling)
1n Retention of Bearings

3 Non Destructive Testing
3d Hardness

9 Assembly
9d Minor mechanical assemblies (bushies & bearings)

17 Material Control
17c Procurement of raw materials (metallic) 17d Procurement of raw materials (non-metallic)
17e Procurement of standard parts (fasteners)